// JavaScript Document
function inputx(F,a,b){
	if(F.value==a){F.value=b;}
}

function imgx(F,a){
	F.src=a;
}



function GetCookie(name){//获得Cookie的原始值
	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 SetCookie(name, value){//设定Cookie值
	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 ));}
	document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))+((secure == true) ? "; secure" : "");
}

function DelCookie(name){//删除Cookie
	var exp = new Date();
	exp.setTime (exp.getTime() - 1);
	var cval = GetCookie (name);
	document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();
}

function trim(str){return str.replace(/(^\s*)|(\s*$)/g, ""); }
function $(x){return document.getElementById(x);}
function left(mainStr,lngLen){if (lngLen>0) {return mainStr.substring(0,lngLen)}else{return null}}
function right(mainStr,lngLen) {if (mainStr.length-lngLen>=0 && mainStr.length>=0 && mainStr.length-lngLen<=mainStr.length) {return mainStr.substring(mainStr.length-lngLen,mainStr.length)}else{return null} }