function goBack(){
	window.history.back();
}

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

	  if ((version >= 5.5) && (document.body.filters)) 
	  {
		 var imgArray = document.getElementsByTagName("img");
		 for(var i=0; i<imgArray.length; i++)
		 {
		 var img = imgArray[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:pointer;" + 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
		 }
		 }
	  }
  };