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// ----------------------------------------------------------------------------- |
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// IWF - Interactive Website Framework. Javascript library for creating |
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// responsive thin client interfaces. |
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// |
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// Copyright (C) 2005 Brock Weaver brockweaver@gmail.com |
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// |
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// This library is free software; you can redistribute it and/or modify |
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// it under the terms of the GNU Lesser General Public License as published |
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// by the Free Software Foundation; either version 2.1 of the License, or |
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// (at your option) any later version. |
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// |
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// This library is distributed in the hope that it will be useful, but |
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// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
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// License for more details. |
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// |
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// You should have received a copy of the GNU Lesser General Public License |
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// along with this library; if not, write to the Free Software Foundation, |
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// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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// |
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// Brock Weaver |
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// brockweaver@gmail.com |
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// 1605 NW Maple Pl |
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// Ankeny, IA 50021 |
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// ----------------------------------------------------------------------------- |
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|
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// -------------------------------------------------------------------------- |
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// iwfcore.js |
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// |
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// Core functions |
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// |
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// Dependencies: |
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// (none) |
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// |
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// Brock Weaver - brockweaver@sourceforge.net - iwf.sourceforge.net |
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// v 0.1 - 2005-06-05 |
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// Initial release. |
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// -------------------------------------------------------------------------- |
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|
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// ----------------------------------- |
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// Begin: Configurable variables |
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// ----------------------------------- |
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|
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// set to true to enable logging. Logging simply means certain values are appended to a string. nothing is written out or communicated over the wire anywhere. |
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var iwfLoggingEnabled = true; |
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|
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|
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// ----------------------------------- |
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// End: Configurable variables |
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// ----------------------------------- |
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|
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|
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// ----------------------------------- |
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// Begin: Element Utility Functions |
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// ----------------------------------- |
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|
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function iwfGetById(id){ |
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var el = null; |
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if (iwfIsString(id) || iwfIsNumber(id)) el = document.getElementById(id); |
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else if (typeof(id) == 'object') el = id; |
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return el; |
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} |
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|
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function iwfGetForm(id){ |
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var frm = iwfGetById(id); |
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if (!frm){ |
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// or by forms collection... |
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frm = document.forms ? document.forms[frm] : null; |
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if (!frm){ |
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// or by tag elements... |
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var allforms = iwfGetByTagName('form'); |
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for(var i=0;i<allforms.length;i++){ |
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if (iwfAttribute(allforms[i], 'name') == id){ |
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frm = allforms[i]; |
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break; |
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} |
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} |
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} |
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} |
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return frm; |
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} |
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|
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function iwfGetByIdWithinForm(form, id){ |
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var frm = iwfGetForm(form); |
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if (!frm){ |
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iwfLog("IWF Core Error: Could not locate form by id, document.forms, or document[] named '" + form + "'", true); |
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return null; |
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} else { |
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// find element within this form with given id. |
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var el = null; |
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if (iwfIsString(id) || iwfIsNumber(id)) { |
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for(var i=0;i<frm.elements.length;i++){ |
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if (frm.elements[i].name == id || frm.elements[i].id == id){ |
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el = frm.elements[i]; |
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break; |
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} |
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} |
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} else { |
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el = id; |
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} |
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//iwfLog('iwfGetByIdWithinForm returning:\n\n' + iwfElementToString(el), true); |
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return el; |
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} |
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} |
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|
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function iwfGetOrCreateWithinForm(form, id, tagNameOrHtml, typeAtt){ |
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var elFrm = iwfGetForm(form); |
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|
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if (!elFrm){ |
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iwfLog("IWF Core Error: <form> with name or id of '" + form + "' could not be located.", true); |
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return; |
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} |
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|
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var el = iwfGetByIdWithinForm(form, id); |
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if (!el){ |
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// element does not exist. create it. |
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el = document.createElement(tagNameOrHtml); |
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iwfAttribute(el, 'name', id); |
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|
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if (typeAtt){ |
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iwfAttribute(el, 'type', typeAtt); |
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} |
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|
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elFrm.appendChild(el); |
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} |
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|
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return el; |
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} |
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|
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function iwfRemoveChild(parentId, id){ |
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var elParent = iwfGetById(parentId); |
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if (elParent){ |
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var elChild = iwfGetById(id); |
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if (elChild){ |
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elParent.removeChild(elChild); |
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} |
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} |
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return elParent; |
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} |
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|
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function iwfGetOrCreateById(id, tagNameOrHtml, parentNodeId){ |
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var el = iwfGetById(id); |
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if (!el){ |
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// element does not exist. create it. |
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el = document.createElement(tagNameOrHtml); |
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iwfAttribute(el, 'id', id); |
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iwfAttribute(el, 'name', id); |
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|
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if (parentNodeId){ |
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var elParent = iwfGetById(parentNodeId); |
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if (elParent){ |
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iwfAppendChild(elParent, el); |
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} else if (parentNodeId.toLowerCase() == 'body'){ |
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iwfAppendChild(document.body, el); |
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} |
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} |
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|
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|
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} |
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return el; |
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} |
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|
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function iwfAppendChild(parentNodeId, childNodeId){ |
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|
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var elChild = iwfGetById(childNodeId); |
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if (!elChild) return null; |
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|
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// get the element who is to be the parent |
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var elParent = iwfGetById(parentNodeId); |
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|
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// parent not found, try by tagName |
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if (!elParent) { |
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var nodes = iwfGetByTagName(parentNodeId); |
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if (nodes && nodes.length > 0){ |
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// always use the first element with that tag name as the parent (think 'body') |
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parent = nodes[0]; |
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} else { |
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// couldn't find by id or tag name. bomb out. |
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return null; |
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} |
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} |
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|
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|
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|
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// append the element to the parent |
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elParent.appendChild(elChild); |
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|
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return elParent; |
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} |
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|
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function iwfRemoveNode(id){ |
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var el = iwfGetById(id); |
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if (!el) return; |
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document.removeNode(el); |
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} |
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|
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function iwfElementToString(id){ |
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var el = iwfGetById(id); |
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if (!el) return 'element ' + id + ' does not exist.'; |
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|
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var s = '<' + el.tagName + ' '; |
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if (el.attributes){ |
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for(var i=0;i<el.attributes.length;i++){ |
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var att = el.attributes[i]; |
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s += ' ' + att.nodeName + '=' + att.nodeValue + ' '; |
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} |
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} |
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if (el.innerHTML == ''){ |
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s += ' />'; |
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} else { |
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s += '>' + el.innerHTML + '</' + el.tagName + '>'; |
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} |
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|
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return s; |
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} |
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|
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function iwfGetByTagName(tagName, root) { |
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var nodes = new Array(); |
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tagName = tagName || '*'; |
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root = root || document; |
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if (root.all){ |
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if (tagName == '*'){ |
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nodes = root.all; |
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} else { |
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nodes = root.all.tags(tagName); |
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} |
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} else if (root.getElementsByTagName) { |
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nodes = root.getElementsByTagName(tagName); |
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} |
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return nodes; |
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} |
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|
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function iwfGetByAttribute(tagName, attName, regex, callback) { |
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var a, list, found = new Array(); |
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var reg = new RegExp(regex, 'i'); |
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list = iwfGetByTagName(tagName); |
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for(var i=0;i<list.length;++i) { |
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a = list[i].getAttribute(attName); |
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if (!a) {a = list[i][attName];} |
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if (typeof(a)=='string' && a.search(regex) != -1) { |
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found[found.length] = list[i]; |
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if (callback) callback(list[i]); |
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} |
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} |
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return found; |
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} |
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|
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function iwfAttribute(id, attName, newval){ |
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var el = iwfGetById(id); |
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if (!el) return; |
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|
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var val = null; |
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if (iwfExists(newval)){ |
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if (newval == null){ |
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// remove it, don't set it to null. |
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iwfRemoveAttribute(el, attName); |
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} else { |
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el.setAttribute(attName, newval); |
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} |
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} |
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val = el.getAttribute(attName); |
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return val; |
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} |
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|
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function iwfRemoveAttribute(id, attName){ |
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var el = iwfGetById(id); |
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if (el){ |
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el.removeAttribute(attName); |
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} |
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return el; |
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} |
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|
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function iwfGetParent(id, useOffsetParent){ |
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var el = iwfGetById(id); |
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if (!el) return null; |
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var cur = null; |
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if (useOffsetParent && iwfExists(el.offsetParent)) { cur = el.offsetParent; |
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} else if (iwfExists(el.parentNode)) { cur = el.parentNode; |
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} else if (iwfExists(el.parentElement)) { cur = el.parentElement; } |
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return cur; |
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} |
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|
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// ----------------------------------- |
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// End: Element Utility Functions |
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// ----------------------------------- |
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|
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|
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// ----------------------------------- |
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// Begin: Encoding Utility Functions |
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// ----------------------------------- |
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|
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function iwfXmlEncode(s){ |
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if (!s){ |
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return ''; |
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} |
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var ret = s.replace(/&/gi, '&').replace(/>/gi,'>').replace(/</gi, '<').replace(/'/gi, ''').replace(/"/gi, '"'); |
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//alert('after xmlencoding: \n\n\n' + ret); |
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return ret; |
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} |
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|
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function iwfXmlDecode(s){ |
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if (!s){ |
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return ''; |
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} |
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var ret = s.replace(/>/gi, '>').replace(/</gi,'<').replace(/'/gi, '\'').replace(/"/gi, '"').replace(/&/gi, '&'); |
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//alert('after xmldecoding: \n\n\n' + ret); |
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return ret; |
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} |
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|
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function iwfHtmlEncode(s){ |
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if (!s){ |
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return ''; |
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} |
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var ret = s.replace(/&/gi, '&').replace(/>/gi,'>').replace(/</gi, '<').replace(/'/gi, ''').replace(/"/gi, '"'); |
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//alert('after xmlencoding: \n\n\n' + ret); |
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return ret; |
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} |
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|
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function iwfHtmlDecode(s){ |
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if (!s){ |
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return ''; |
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} |
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var ret = s.replace(/>/gi, '>').replace(/</gi,'<').replace(/'/gi, '\'').replace(/"/gi, '"').replace(/&/gi, '&'); |
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//alert('after xmldecoding: \n\n\n' + ret); |
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return ret; |
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} |
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// ----------------------------------- |
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// End: Xml Utility Functions |
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// ----------------------------------- |
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|
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|
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// ----------------------------------- |
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// Begin: Conversion / Formatting Utility Functions |
334 |
// ----------------------------------- |
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|
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function iwfExists(){ |
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for(var i=0;i<arguments.length;i++){ |
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if(typeof(arguments[i])=='undefined') return false; |
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} |
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return true; |
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} |
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|
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function iwfIsString(s){ |
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return typeof(s) == 'string'; |
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} |
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|
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function iwfIsNumber(n){ |
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return typeof(n) == 'number'; |
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} |
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|
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function iwfIsBoolean(b){ |
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return typeof(b) == 'boolean'; |
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} |
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|
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function iwfIsDate(val){ |
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var dt = iwfDateFormat(val); |
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if(!dt){ |
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return false; |
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} else { |
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// determine if the month/day makes sense. |
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var mo = parseInt(dt.substring(0,2), 10); |
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var dy = parseInt(dt.substring(3,2), 10); |
363 |
var yr = parseInt(dt.substring(6,4), 10); |
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var maxdy = 28; |
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switch(mo){ |
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case 4: |
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case 6: |
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case 9: |
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case 11: |
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maxdy = 30; |
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break; |
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case 2: |
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// check leap year |
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if (yr % 4 == 0 && (yr % 100 != 0 || yr % 400 == 0)){ |
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maxdy = 29; |
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} |
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break; |
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default: |
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// 1, 3, 5, 7, 8, 10, 12 |
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maxdy = 31; |
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break; |
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} |
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return dy > 0 && dy <= maxdy; |
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} |
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} |
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|
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function iwfDateFormat(val){ |
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var delim = '/'; |
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if (val.indexOf(delim) == -1){ |
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delim = '-'; |
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} |
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|
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var today = new Date(); |
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var mo = '00' + (today.getMonth() + 1); |
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var dy = '00' + (today.getDate()); |
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var yr = today.getFullYear(); |
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var arr = val.split(delim); |
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switch(arr.length){ |
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case 2: |
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// possibles: 9/2, 9/2004, 09/06, |
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// assume first is always month |
402 |
mo = '00' + arr[0]; |
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if (arr[1].length == 4){ |
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// assume second is year. |
405 |
yr = arr[1]; |
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} else { |
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// assume second is date. |
408 |
dy = '00' + arr[1]; |
409 |
} |
410 |
break; |
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case 3: |
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// possibles: 9/2/1, 9/02/04, 09/02/2004, 9/2/2004 |
413 |
mo = '00' + arr[0]; |
414 |
dy = '00' + arr[1]; |
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switch(arr[2].length){ |
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case 1: |
417 |
yr = '200' + arr[2]; |
418 |
break; |
419 |
case 2: |
420 |
if (arr[2] < 50){ |
421 |
yr = '20' + arr[2]; |
422 |
} else { |
423 |
yr = '19' + arr[2]; |
424 |
} |
425 |
break; |
426 |
case 3: |
427 |
// 3 digits... assume 2000 I guess |
428 |
yr = '2' + arr[2]; |
429 |
break; |
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case 4: |
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yr = arr[2]; |
432 |
break; |
433 |
default: |
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break; |
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} |
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break; |
437 |
default: |
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// invalid date. |
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return null; |
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break; |
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} |
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mo = mo.substring(mo.length - 2); |
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dy = dy.substring(dy.length - 2); |
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return mo + '/' + dy + '/' + yr; |
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|
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} |
447 |
|
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function iwfToInt(val, stripFormatting){ |
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var s = iwfIntFormat(val, stripFormatting); |
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return parseInt(s, 10); |
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} |
452 |
|
453 |
function iwfToFloat(val, dp, stripFormatting){ |
454 |
var s = iwfFloatFormat(val, dp, stripFormatting); |
455 |
return parseFloat(s); |
456 |
} |
457 |
|
458 |
function iwfIntFormat(val, stripFormatting){ |
459 |
return iwfFloatFormat(val, -1, stripFormatting); |
460 |
} |
461 |
|
462 |
function iwfFloatFormat(val, dp, stripFormatting){ |
463 |
if (stripFormatting && iwfIsString(val)){ |
464 |
val = val.replace(/[^0-9\.]/gi,''); |
465 |
} |
466 |
if (isNaN(val)) { |
467 |
val = 0.0; |
468 |
} |
469 |
|
470 |
var s = '' + val; |
471 |
var pos = s.indexOf('.'); |
472 |
if (pos == -1) { |
473 |
s += '.'; |
474 |
pos += s.length; |
475 |
} |
476 |
s += '0000000000000000000'; |
477 |
s = s.substr(0,pos+dp+1); |
478 |
return s; |
479 |
} |
480 |
|
481 |
// ----------------------------------- |
482 |
// End: Conversion / Formatting Utility Functions |
483 |
// ----------------------------------- |
484 |
|
485 |
// ----------------------------------- |
486 |
// Begin: Form Submittal Utility Functions |
487 |
// ----------------------------------- |
488 |
function iwfDoAction(act, frm, id, targetElement){ |
489 |
//alert('action=' + act + '\nfrm=' + frm + '\nid=' + id + '\ntargetElement=' + targetElement); |
490 |
// validate the form first |
491 |
if (window.iwfOnFormValidate){ |
492 |
if (!iwfOnFormValidate(act)){ |
493 |
return; |
494 |
} |
495 |
} |
496 |
|
497 |
var frmId = frm; |
498 |
// try by id first... |
499 |
frm = iwfGetForm(frmId); |
500 |
|
501 |
if (!frm){ |
502 |
iwfLog('IWF Core Error: Could not locate form with id or name of ' + frmId, true); |
503 |
return; |
504 |
} |
505 |
|
506 |
// get or create the iwfId |
507 |
var elId = iwfGetOrCreateById('iwfId', 'input'); |
508 |
|
509 |
if (!elId){ |
510 |
iwfLog('IWF Core Error: Could not create iwfId element!', true); |
511 |
return; |
512 |
} else { |
513 |
iwfAttribute(elId, 'value', id); |
514 |
iwfRemoveAttribute(elId, 'disabled'); |
515 |
|
516 |
if (!iwfGetParent(elId)){ |
517 |
// our element has not been added to the document yet. |
518 |
iwfAttribute(elId, 'type', 'hidden'); |
519 |
if (!iwfAppendChild(frm, elId)){ |
520 |
iwfLog('IWF Core Error: Created iwfId element, but could not append to form ' + frm.outerHTML, true); |
521 |
return; |
522 |
} |
523 |
} |
524 |
//alert(iwfElementToString(elId) + '\n\ndisabled=' + iwfAttribute(elId, 'disabled') + '\n\n' + elId.disabled); |
525 |
} |
526 |
|
527 |
|
528 |
// get or create the iwfMode |
529 |
var elMode = iwfGetOrCreateById('iwfMode', 'input'); |
530 |
if (!elMode){ |
531 |
iwfLog('IWF Core Error: Could not create iwfMode element!', true); |
532 |
return; |
533 |
} else { |
534 |
iwfAttribute(elMode, 'value', act); |
535 |
iwfRemoveAttribute(elMode, 'disabled'); |
536 |
if (!iwfGetParent(elMode)){ |
537 |
// our element has not been added to the document yet. |
538 |
iwfAttribute(elMode, 'type', 'hidden'); |
539 |
if (!iwfAppendChild(frm, elMode)){ |
540 |
iwfLog('IWF Core Error: Created iwfMode element, but could not append to form ' + frm.outerHTML, true); |
541 |
return; |
542 |
} |
543 |
} |
544 |
} |
545 |
|
546 |
// make our request |
547 |
var elRealTarget = iwfGetById(targetElement); |
548 |
if (elRealTarget){ |
549 |
// use ajax because they specified a particular element to shove the results into. |
550 |
|
551 |
// get or create the iwfTarget |
552 |
var elTarget = iwfGetOrCreateById('iwfTarget', 'input'); |
553 |
if (!elTarget){ |
554 |
iwfLog('IWF Core Error: Could not create iwfTarget element under form ' + frm.outerHTML, true); |
555 |
return; |
556 |
} else { |
557 |
iwfAttribute(elTarget, 'value', iwfAttribute(elRealTarget, 'id')); |
558 |
iwfRemoveAttribute(elTarget, 'disabled'); |
559 |
if (!iwfGetParent(elTarget)){ |
560 |
// our element has not been added to the document yet. |
561 |
iwfAttribute(elTarget, 'type', 'hidden'); |
562 |
if (!iwfAppendChild(frm, elTarget)){ |
563 |
iwfLog('IWF Core Error: Created iwfTarget element, but could not append to form ' + frm.outerHTML, true); |
564 |
return; |
565 |
} |
566 |
} |
567 |
} |
568 |
|
569 |
if (!window.iwfRequest){ |
570 |
iwfLog("IWF Core Error: when using the iwfDo* functions and passing a targetElement, you must also reference the iwfajax.js file from your main html file.", true); |
571 |
} else { |
572 |
//alert('calling iwfRequest(' + frm + ')'); |
573 |
iwfRequest(frm); |
574 |
} |
575 |
} else { |
576 |
// do a normal html submit, since they didn't specify a particular target |
577 |
alert('doing frm.submit()'); |
578 |
frm.submit(); |
579 |
} |
580 |
} |
581 |
|
582 |
function iwfDoEdit(formId, id, targetElement){ |
583 |
iwfDoAction('edit', formId, id, targetElement); |
584 |
} |
585 |
function iwfDoSave(formId, id, targetElement){ |
586 |
iwfDoAction('save', formId, id, targetElement); |
587 |
} |
588 |
function iwfDoDelete(formId, id, targetElement){ |
589 |
iwfDoAction('delete', formId, id, targetElement); |
590 |
} |
591 |
function iwfDoAdd(formId, id, targetElement){ |
592 |
iwfDoAction('add', formId, id, targetElement); |
593 |
} |
594 |
function iwfDoSelect(formId, id, targetElement){ |
595 |
iwfDoAction('select', formId, id, targetElement); |
596 |
} |
597 |
function iwfDoCancel(formId, id, targetElement){ |
598 |
iwfDoAction('cancel', formId, id, targetElement); |
599 |
} |
600 |
|
601 |
function iwfMailTo(uid, host){ |
602 |
// this is just so an email doesn't have to be output to the browser in raw text for |
603 |
// email harvesters to grab... |
604 |
return 'mailto:' + uid + '@' + host; |
605 |
} |
606 |
|
607 |
function iwfClickLink(id){ |
608 |
var el = iwfGetById(id); |
609 |
if (!el) return; |
610 |
|
611 |
if (el.click){ |
612 |
el.click(); |
613 |
} else { |
614 |
location.href = el.href; |
615 |
} |
616 |
} |
617 |
|
618 |
function iwfShowMessage(msg){ |
619 |
var el = iwfGetById('msg'); |
620 |
if (!el){ |
621 |
// window.status = msg; |
622 |
alert(msg + '\n\nTo supress this alert, add a tag with an id of "msg" to this page.'); |
623 |
} else { |
624 |
el.innerHTML = msg.replace(/\n/, '<br />'); |
625 |
} |
626 |
} |
627 |
|
628 |
|
629 |
// ----------------------------------- |
630 |
// End: Form Submittal Utility Functions |
631 |
// ----------------------------------- |
632 |
|
633 |
// ----------------------------------- |
634 |
// Begin: Logging Utility Functions |
635 |
// ----------------------------------- |
636 |
|
637 |
var _iwfLoggedItems = ""; |
638 |
function iwfLog(txt, showAlert){ |
639 |
if (iwfLoggingEnabled){ |
640 |
_iwfLoggedItems += txt + '\n'; |
641 |
} else { |
642 |
// send to big bit bucket in the sky |
643 |
// | /dev/null |
644 |
} |
645 |
if (showAlert){ |
646 |
alert(txt); |
647 |
} |
648 |
} |
649 |
|
650 |
function iwfHideLog(){ |
651 |
iwfGetById("iwfLog").style.display="none"; |
652 |
} |
653 |
|
654 |
function iwfClearLog(){ |
655 |
_iwfLoggedItems = ''; |
656 |
iwfRefreshLog(); |
657 |
} |
658 |
|
659 |
function iwfRefreshLog(){ |
660 |
iwfHideLog(); |
661 |
iwfShowLog(); |
662 |
} |
663 |
|
664 |
function iwfShowLog(){ |
665 |
if (!iwfLoggingEnabled){ |
666 |
alert("Logging for IWF has been disabled.\nSet the iwfLoggingEnabled variable located in the iwfcore.js file to true to enable logging."); |
667 |
} else { |
668 |
var el = iwfGetOrCreateById('iwfLog', 'div', 'body'); |
669 |
if (!el){ |
670 |
alert(_iwfLoggedItems); |
671 |
} else { |
672 |
el.style.position = 'absolute'; |
673 |
el.style.zIndex = '999999'; |
674 |
el.style.left = '10px'; |
675 |
el.style.top = '200px'; |
676 |
el.style.color = 'blue'; |
677 |
el.style.width = '500px'; |
678 |
el.style.height = '300px'; |
679 |
el.style.overflow = 'scroll'; |
680 |
el.style.padding = '5px 5px 5px 5px;' |
681 |
el.style.backgroundColor = '#efefef'; |
682 |
el.style.border = '1px dashed blue'; |
683 |
el.style.display = 'block'; |
684 |
el.style.visibility = 'visible'; |
685 |
el.id = 'iwfLog'; |
686 |
// el.innerHTML = "IWF Log <span style='width:100px'> </span><a href='javascript:iwfRefreshLog();'>refresh</a> <a href='javascript:iwfHideLog();'>close</a> <a href='javascript:iwfClearLog();'>clear</a>:<hr />" + iwfXmlEncode(_iwfLoggedItems).replace(/\n/gi, '<br />').replace(/\t/gi,' '); |
687 |
el.innerHTML = "IWF Log <span style='width:100px'> </span><a href='javascript:iwfRefreshLog();'>refresh</a> <a href='javascript:iwfHideLog();'>close</a> <a href='javascript:iwfClearLog();'>clear</a>:<hr /><pre>" + _iwfLoggedItems.replace(/</gi, '<').replace(/>/gi, '>') + "</pre>"; |
688 |
|
689 |
} |
690 |
} |
691 |
} |
692 |
|
693 |
|
694 |
// ----------------------------------- |
695 |
// End: Logging Utility Functions |
696 |
// ----------------------------------- |