function shot(str,w,h){    
	
	var option;
	var href;
	
	option="scrollbars=yes, resizable=yes, status=no, location=no, toolbar=no";
			
	href=location.href.substr(0,location.href.lastIndexOf("index.php"));
		
	str=href+str;
	
	if (w && w>0) option+=",width="+w;
	if (h && h>0) option+=",height="+h;
	
	window.open(str,'',option);

}