SimpleTaskSystem.Web/Content/Login/js/DD_belatedPNG.js

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/**
* DD_belatedPNG: Adds IE6 support: PNG images for CSS background-image and HTML <IMG/>.
* Author: Drew Diller
* Email: drew.diller@gmail.com
* URL: http://www.dillerdesign.com/experiment/DD_belatedPNG/
* Version: 0.0.8a
* Licensed under the MIT License: http://dillerdesign.com/experiment/DD_belatedPNG/#license
*
* Example usage:
* DD_belatedPNG.fix('.png_bg'); // argument is a CSS selector
* DD_belatedPNG.fixPng( someNode ); // argument is an HTMLDomElement
**/

/*
PLEASE READ:
Absolutely everything in this script is SILLY.  I know this.  IE's rendering of certain pixels doesn't make sense, so neither does this code!
*/

var DD_belatedPNG = {
	ns: 'DD_belatedPNG',
	imgSize: {},
	delay: 10,
	nodesFixed: 0,
	createVmlNameSpace: function () { /* enable VML */
		if (document.namespaces && !document.namespaces[this.ns]) {
			document.namespaces.add(this.ns, 'urn:schemas-microsoft-com:vml');
		}
	},
	createVmlStyleSheet: function () { /* style VML, enable behaviors */
		/*
			Just in case lots of other developers have added
			lots of other stylesheets using document.createStyleSheet
			and hit the 31-limit mark, let's not use that method!
			further reading: http://msdn.microsoft.com/en-us/library/ms531194(VS.85).aspx
		*/
		var screenStyleSheet, printStyleSheet;
		screenStyleSheet = document.createElement('style');
		screenStyleSheet.setAttribute('media', 'screen');
		document.documentElement.firstChild.insertBefore(screenStyleSheet, document.documentElement.firstChild.firstChild);
		if (screenStyleSheet.styleSheet) {
			screenStyleSheet = screenStyleSheet.styleSheet;
			//screenStyleSheet.addRule(this.ns + '\\:*', '{behavior:url(#default#VML)}');
			screenStyleSheet.addRule(this.ns + '\\:shape', 'position:absolute;');
			screenStyleSheet.addRule('img.' + this.ns + '_sizeFinder', 'behavior:none; border:none; position:absolute; z-index:-1; top:-10000px; visibility:hidden;'); /* large negative top value for avoiding vertical scrollbars for large images, suggested by James O'Brien, http://www.thanatopsic.org/hendrik/ */
			this.screenStyleSheet = screenStyleSheet;
			
			/* Add a print-media stylesheet, for preventing VML artifacts from showing up in print (including preview). */
			/* Thanks to R閙i Pr関ost for automating this! */
			printStyleSheet = document.createElement('style');
			printStyleSheet.setAttribute('media', 'print');
			document.documentElement.firstChild.insertBefore(printStyleSheet, document.documentElement.firstChild.firstChild);
			printStyleSheet = printStyleSheet.styleSheet;
			//printStyleSheet.addRule(this.ns + '\\:*', '{display: none !important;}');
			printStyleSheet.addRule('img.' + this.ns + '_sizeFinder', '{display: none !important;}');
		}
	},
	readPropertyChange: function () {
		var el, display, v;
		el = event.srcElement;
		if (!el.vmlInitiated) {