function replacePNGs() {

	if(navigator.userAgent.match(/MSIE\s+(7.0)/i)) 
	{
		return;
	}
	
	 imgs = document.getElementsByTagName('img');

	 for ( i = 0; i < imgs.length; i++ ) {

	   	 img = imgs[i];

	   	 if ( img.getAttribute('src', false) && img.getAttribute('src', false).match(/\.png$/i) && navigator.userAgent.match(/MSIE\s+(5.5|6.0)/i) ) {

	   	   	 newSpan = document.createElement("span");
			 newSpan.setAttribute('id',img.getAttribute('id'));
			 
			 if (img.getAttribute('className') != null) {
			 	newSpan.setAttribute('className',img.getAttribute('className'));
			 }	 
			 
	   	   	 img.parentNode.insertBefore(newSpan, img);

	   	   	 newSpan.style.width = img.offsetWidth + 'px';

	   	   	 newSpan.style.height = img.offsetHeight + 'px';
			 //newSpan.style.margin = '2px 20px 0px 20px';
	
	   	   	 newSpan.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + img.getAttribute('src', false) + "', sizingMethod='crop', enabled=true)";

	   	   	 img.style.display = 'none';
	   	 }
	 }
}