var resolution = screen.width + "*" + screen.height; //屏幕分辨率
var system_color=""; //屏幕颜色
if (navigator.appName=="Netscape"){
	system_color=screen.pixelDepth;
} else {
	system_color=screen.colorDepth;
}
var url_location = encodeURI(document.location); //被访问网址
var from_url = encodeURI(document.referrer); //来源网址
document.write("<img style='width:0px;height:0px' src='/_admin_stat_chk.php?u=&resolution="+resolution+"&system_color="+system_color+"&url_location="+escape(url_location)+"&from_url="+escape(from_url)+"' />");