var agt = navigator.userAgent.toLowerCase();
	var is_ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
	if(is_ie) {
		function iepngfix() {
			function getInternetExplorerVersion() {
				var rv = -1;
				if (navigator.appName == 'Microsoft Internet Explorer') {
					var ua = navigator.userAgent;
					var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
					if (re.exec(ua) != null)
						rv = parseInt( RegExp.$1 );
				}
				return rv;
			}
			if(getInternetExplorerVersion()<7) {
				var s = document.createStyleSheet()
				s.addRule(".iepngfix img", "behavior: url(/js/iepngfix.htc)");
				s.addRule(".iepngfix", "behavior: url(/js/iepngfix.htc)");
				s.addRule("#iepngfix", "behavior: url(/js/iepngfix.htc)");
			}
		}
		iepngfix();
	}