//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;
}

	function chkLogin(obj)
	{
		if (!obj.m_username.value)
		{
			alert ('请输入用户名！');
			obj.m_username.focus ();
			return false;
		}
		else
		{
			if (obj.m_username.value != 'pcn')
			{
				alert ('用户名错误！');
				obj.m_username.focus ();
				return false;
			}
		}

		if (!obj.m_password.value)
		{
			alert ('请输入密码！');
			obj.m_password.focus ();
			return false;
		}
		else
		{
			if (obj.m_password.value !='holla')
			{
				alert ('密码错误！');
				obj.m_password.focus ();
				return false;
			}
		}

		SetCookie('UserName', 'pcn');

		window.location.href=obj.ServiceUrl.value;
	}

document.writeln("<div id=\"light\" class=\"white_content\">");
document.writeln("  <table width=\"100%\" border=\"0\" align=\"center\" cellpadding=\"2\" cellspacing=\"1\" bgcolor=\"#B3D9EC\">");
document.writeln("    <tr>");
document.writeln("      <td height=\"25\" background=\"images\/bg_cate.gif\"><table width=\"97%\" border=\"0\" align=\"center\" cellpadding=\"0\" cellspacing=\"0\">");
document.writeln("        <tr>");
document.writeln("          <td>Login<\/td>");
document.writeln("          <td align=\"right\"><a href=\"#none\" onClick=\"closeWindow();\">Close<\/a><\/td>");
document.writeln("        <\/tr>");
document.writeln("      <\/table><\/td>");
document.writeln("    <\/tr>");
document.writeln("    <tr>");
document.writeln("      <td height=\"25\" bgcolor=\"#FAFDFF\"><table width=\"100%\" border=\"0\" align=\"center\" cellpadding=\"5\" cellspacing=\"3\">");
document.writeln("        <tr>");
document.writeln("          <td><table width=\"100%\" border=\"0\" align=\"center\" cellpadding=\"0\" cellspacing=\"0\">");
document.writeln("            <form method=\"post\" action=\"\">");
document.writeln("              <tr>");
document.writeln("                <td height=\"25\">User ID:　");
document.writeln("                  <label>");
document.writeln("                    <input name=\"m_username\" type=\"text\" class=\"textbox\" size=\"18\" \/>");
document.writeln("                  <\/label><\/td>");
document.writeln("              <\/tr>");
document.writeln("              <tr>");
document.writeln("                <td height=\"25\">Password:");
document.writeln("                  <input name=\"m_password\" type=\"password\" class=\"textbox\" size=\"8\" \/>");
document.writeln("					<INPUT TYPE=\"hidden\" id=\"ServiceUrl\" NAME=\"\" value=\"\">");
document.writeln("                  <input name=\"login\" type=\"button\" class=\"textbox\" value=\"Login\" onClick=\"return chkLogin(this.form);\" \/><\/td>");
document.writeln("              <\/tr>");
document.writeln("            <\/form>");
document.writeln("          <\/table><\/td>");
document.writeln("        <\/tr>");
document.writeln("      <\/table><\/td>");
document.writeln("    <\/tr>");
document.writeln("  <\/table>");
document.writeln("<\/div>");
document.writeln("<div id=\"fade\" class=\"black_overlay\"><\/div>");

	function showWindow(ServiceUrl)
	{
		document.getElementById('light').style.display='block';
		document.getElementById('fade').style.display='block';
		document.getElementById('ServiceUrl').value=ServiceUrl;
	}

	function closeWindow()
	{
		document.getElementById('light').style.display='none';
		document.getElementById('fade').style.display='none';
		//window.history.go(-1);
	}