//从右边iframe中打开
function OpenRight(GotoURL)
{
	if(GotoURL!="#")
	{
		var ifm=document.getElementById("MainWin")
		ifm.src=GotoURL;
	}
}
//主菜单移动
function switchwindow()
{
	if(MainLeft.width=="20%")
	{
		MainLeft.width="1";
		MainRight.width="100%";
		MainCenter.innerHTML="<img src='images/btnRight.gif'>";
		SetCookie("MLW","1");
	}
	else
	{
		MainLeft.width="20%";
		MainRight.width="80%";
		MainCenter.innerHTML="<img src='images/btnLeft.gif'>";
		SetCookie("MLW","20%");
	}
	MainCenter.style.backgroundColor='#D4D4D4';
}
//页面初始化
function PageIni()
{	
	if(document.getElementById("MainLeft")!=null)
	{
		if(GetCookie("MLW")=="20%"||GetCookie("MLW")=="")
		{
			MainLeft.width="20%";
			MainRight.width="80%";
			MainCenter.innerHTML="<img src='images/btnLeft.gif'>";
		}
		else
		{
			MainLeft.width="1";
			MainRight.width="100%";
			MainCenter.innerHTML="<img src='images/btnRight.gif'>";
		}
	}
}
//获得Cookie解码后的值
function GetCookieVal(offset)
{
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
		endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}
//设定Cookie值
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 ));
	document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))
	+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))
	+((secure == true) ? "; secure" : "");
}
//删除Cookie
function DelCookie(name)
{
	var exp = new Date();
	exp.setTime (exp.getTime() - 1);
	var cval = GetCookie (name);
	document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();
}
//获得Cookie的原始值
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;
}