function replacePNGs() {

				  	 imgs = document.getElementsByTagName('img');

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

				  	   	 img = imgs[i];

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

				  	   	   	 newSpan = document.createElement("span");

				  	   	   	 img.parentNode.insertBefore(newSpan, img);

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

				  	   	   	 newSpan.style.height = img.offsetHeight + 'px';

				  	   	   	 newSpan.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + img.getAttribute('src', false) + "', sizingMethod='crop', enabled=true)";

				  	   	   	 img.style.display = 'none';

				  	   	 }

				  	 }

				}

				

				window.onload = replacePNGs;