// JavaScript Document
var bo_ns_id = 0;
function startIeFix(){  
if(isIE()){ 

document.write('<div id="bo_ns_id_' + bo_ns_id + '"><!-- ');  }
}

function endIeFix(){  
if(isIE()){    
document.write('</div>');    
var theObject = document.getElementById("bo_ns_id_" + bo_ns_id++);    
var theCode = theObject.innerHTML;    
theCode = theCode.substring(4 ,9+theCode.indexOf("</object>"))    
document.write(theCode);  }}function isIE(){  
// only for Win IE 6+  
// But not in Windows 98, Me, NT 4.0, 2000  
var strBrwsr= navigator.userAgent.toLowerCase();  
if(strBrwsr.indexOf("msie") > -1 && strBrwsr.indexOf("mac") < 0){    
if(parseInt(strBrwsr.charAt(strBrwsr.indexOf("msie")+5)) < 6){      return false;    }    
if(strBrwsr.indexOf("win98") > -1 || strBrwsr.indexOf("win 9x 4.90") > -1 || strBrwsr.indexOf("winnt4.0") > -1 || strBrwsr.indexOf("windows nt 5.0") > -1) {      return false;    }  
return true;  }
else{    return false;  }


}


<!--[if lt IE 7]>
function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{
   var arVersion = navigator.appVersion.split("MSIE")
   var version = parseFloat(arVersion[1])
   if ((version >= 5.5) && (document.body.filters)) 
   {
      for(var i=0; i<document.images.length; i++)
      {
         var img = document.images[i]
         var imgName = img.src.toUpperCase()
         if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
         {
            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 
            if (img.align == "left") imgStyle = "float:left;" + imgStyle
            if (img.align == "right") imgStyle = "float:right;" + imgStyle
            if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
            var strNewHTML = "<span " + imgID + imgClass + imgTitle
            + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
            + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
            + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
            img.outerHTML = strNewHTML
            i = i-1
         }
      }
   }    
}
window.attachEvent("onload", correctPNG);
<![endif]-->