document.oncontextmenu=function(){return false;}
//document.onselectstart=function(){return false;}
function $(id){
	if(document.getElementById && document.getElementById(id)){
		//w3c dom
		return document.getElementById(id);
	}
	else if(document.all && document.all(id)){
		//msie 4  dom
		return document.all(id);
	}
	else if(document.layers && document.layers(id)){
		//nn 4 dom
		return document.layers[id];
	}
	else{
		return false;
	}
}
//统计来路
function GetCookie(name){
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen){
		var j = i + alen;
		if(document.cookie.substring(i, j) == arg)return GetCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}
function trim(str){
	return str.replace(/(^\s*)|(\s*$)/g,'');
}
function SetCookie(name, value){
	var expdate = new Date();
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	//if(expires!=null) expdate.setTime(expdate.getTime() + ( expires * 1000 ));
	if(expires!=null) expdate.setTime(expdate.getTime());
	document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))+((secure == true) ? "; secure" : "");
}
function GetCookieVal(offset){
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}
if(GetCookie('comefrom')==null){
	var comefrom=document.referrer?document.referrer:'自动输入网址';
	SetCookie('comefrom',comefrom);
}
window.onerror=function(){return true;}