/**
 * PngFix
 * @version 1.0
 * 2008. 04. 26.
 * @package JavaScripts
 * @subpackage PNGFIX (IMG | BACKGROUND)
 * @author E-DOT Interactive Studio <info@e-dot.hu>
 * @copyright Copyright (c) 2008, E-DOT
 */

var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])


function fixAllPNG(d,E,b,i,a)
{
  d=document;E=d.documentElement;b=d.body;if(!E)return;
  var t = new Array();
  var idx = 0;
  for(i=0;a=b.getElementsByTagName("img")[i];i++)
  {
    if (a.src.match(/^.*\.png$/))
    {
      t[idx++] = a;
    }
  }
  for (i in t)
  {
    fixPNG(t[i]);
  }
}

function fixPNG(myImage)
{
    if ((version >= 5.5) && (version < 7) && (document.body.filters))
    {
       var found = false;
       var a = myImage;
       while (a=a.parentNode)
       {
         if (a.tagName && a.tagName.toLowerCase() == "a")
         {
           found = true;
           break;
         }
       }
       
       var imgID = (myImage.id) ? "id='" + myImage.id + "' " : ""
  	   var imgClass = (myImage.className) ? "class='" + myImage.className + "' " : ""
  	   var imgTitle = (myImage.title) ?
  		             "title='" + myImage.title  + "' " : "title='" + myImage.alt + "' "
       var imgStyle = "display:inline-block;" + myImage.style.cssText
       
       var styles = [["styleFloat", "float"], ["margin", "margin"]];
       var style = "";
       for (i in styles)
       {
         s = "";
         if (window.getComputedStyle) s = window.getComputedStyle(myImage,null)[styles[i][0]];
         else if(myImage.currentStyle) s = myImage.currentStyle[styles[i][0]];
         
         if (s) style += styles[i][1] + ":" + s + ";";
       }
  	   
  	   var strNewHTML = "<span " + imgID + imgClass + imgTitle
                    + " style=\"" + "width:" + myImage.width
                    + "px;" + style + (found?" cursor: pointer;":"") + " height:" + myImage.height
                    + "px;" + imgStyle + ";"
                    + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
                    + "(src=\'" + myImage.src + "\');\"></span>"
      myImage.outerHTML = strNewHTML

    }
}

function bgsleight() {

	this.fnLoadPngs = function() {
    if (!(navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent)) return;
		var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
		var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5 && Number(rslt[1]) < 7);
		
		for (var i = document.all.length - 1, obj = null; (obj = document.all[i]); i--) {
			if (itsAllGood && obj.currentStyle.backgroundImage.match(/\.png/i) != null) {

				fnFixPng(obj);
				obj.attachEvent("onpropertychange", fnPropertyChanged);
			}
		}
	}
	function fnPropertyChanged() {
		if (window.event.propertyName == "style.backgroundImage") {
			var el = window.event.srcElement;
			if (!el.currentStyle.backgroundImage.match(/data:image\/gif;base64,0/i)) {
				var bg	= el.currentStyle.backgroundImage;
				var src = bg.substring(5,bg.length-2);
				el.filters.item(0).src = src;
				el.style.backgroundImage = "url(data:image/gif;base64,0)";
			}
		}
	}
	function fnFixPng(obj) {
		var bg	= obj.currentStyle.backgroundImage;
		var scale = 'crop';
		if (obj.currentStyle.pngBgSizing)
      scale = (obj.currentStyle.pngBgSizing == 'none'?'':obj.currentStyle.pngBgSizing);

		var src = bg.substring(5,bg.length-2);
    obj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "'" + (scale?", sizingMethod='" + scale + "'":"") + ")";
		obj.style.backgroundImage = "url(data:image/gif;base64,0)";
	}
}
fixbgpng = new  bgsleight();