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getComputedStyle for IE

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fix for IE, adds getComputedStyle method for the object window and getPropertyValue method for the object, which returns getComputedStyle

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  1. if (!window.getComputedStyle) {
  2.     window.getComputedStyle = function(el, pseudo) {
  3.         this.el = el;
  4.         this.getPropertyValue = function(prop) {
  5.             var re = /(\-([a-z]){1})/g;
  6.             if (prop == 'float') prop = 'styleFloat';
  7.             if (re.test(prop)) {
  8.                 prop = prop.replace(re, function () {
  9.                     return arguments[2].toUpperCase();
  10.                 });
  11.             }
  12.             return el.currentStyle[prop] ? el.currentStyle[prop] : null;
  13.         }
  14.         return this;
  15.     }
  16. }
  17.  
  18. EXAMPLE
  19.  
  20. window.onload = function() {
  21.     var compStyle = window.getComputedStyle(document.getElementById('test'), "");
  22.  
  23.     alert(compStyle.getPropertyValue("color"));
  24.     alert(compStyle.getPropertyValue("float"));
  25.     alert(compStyle.getPropertyValue("background-color"));
  26. }

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