/*
 
Correctly handle PNG transparency in Win IE 5.5 & 6.
http://homepage.ntlworld.com/bobosola. Updated 18-Jan-2006.

Use in <HEAD> with DEFER keyword wrapped in conditional comments:
<!--[if lt IE 7]>
<script defer type="text/javascript" src="pngfix.js"></script>
<![endif]-->

*/

var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])

function fixPNG(img) 
{
    if ((version >= 5.5) && (version < 7) && (document.body.filters)) 
    {
	  		 var imgID = (img.id) ? "id='" + img.id + "' " : ""
		     var imgClass = (img.className) ? "class='" + img.className + "' " : ""
		     var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
		     var imgStyle = "display:inline-block;" + img.style.cssText 
		     var imgAttribs = img.attributes;
		     for (var j=0; j<imgAttribs.length; j++)
			 {
			    var imgAttrib = imgAttribs[j];
			    if (imgAttrib.nodeName == "align")
			    {		  
			       if (imgAttrib.nodeValue == "left") imgStyle = "float:left;" + imgStyle
			       if (imgAttrib.nodeValue == "right") imgStyle = "float:right;" + imgStyle
			       break
			    }
             }
		     var strNewHTML = "<span style='cursor:pointer;'" + imgID + imgClass + imgTitle
		     strNewHTML += " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
	         strNewHTML += "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
		     strNewHTML += "(src='" + img.src + "', sizingMethod='scale');\""
		     strNewHTML += " onmouseover=\"changePNGClass('" + img.id + "');\" onmouseout=\"changeBackPNGClass('" + img.id +"');\""
		     strNewHTML += "></span>" 
		     img.outerHTML = strNewHTML
    }
}


function changePNGClass(id)
{
   
   document.getElementById(id).style.zIndex = "20";
	var i=1
	for (i=1;i<=6;i++)
	{
		if("i_" + i != id)
		{
			document.getElementById("i_" + i).filters(0).src = "http://www.aevs.com/images/tabs/b_" + i + ".png";
		} 
	}
}

function changeBackPNGClass(id)
	{
		var i=1
		for (i=1;i<=6;i++)
		{
			if("i_" + i != id)
			{
				document.getElementById("i_" + i).filters(0).src = "http://www.aevs.com/images/tabs/i_" + i + ".png";
			} 
		}
	}

