function getCookie(name,t){
	var errtxt=""; 
	var err; 
	try 
	{ 
		var strCookie=document.cookie;
		var arrCookie=strCookie.split(name);
		if(arrCookie.length>=2){
			var arrValue=arrCookie[1].split(t+"=");
			if(arrValue.length>=2)
			{
				var value = arrValue[1];
				if(value!="") 
				{
					var temp=value.split("&");
					return temp[0];
				}
				else
				{
					return "";
				}
			}
			else
			{
				return "";
			}
		}
		return "";
	} 
	catch(err) 
	{ 
		errtxt=err.message; 
		alert(errtxt);
		var errtxt=""; 
		return "";
	}
}

function display(t)
{
	var  a=getCookie("NHGY_USER",t);
	return a;
}

function delCookie(){//为了删除指定名称的cookie，可以将其过期时间设定为一个过去的时间
    var date = new Date();
    date.setTime(date.getTime() - 10000);
    document.cookie =  "NHGY_USER=a; expires=" + date.toGMTString();
}

function getDateMsg()
{
	var Digital=new Date();
	var hours=Digital.getHours();
	var dn="上午";
	if(hours>=23)
	{
		dn = "深夜";
	}
	else if(hours>=18)
	{
		dn = "晚上";
	}
	else if(hours>=13)
	{
		dn = "下午";
	}
	else if(hours>=11)
	{
		dn = "中午";
	}
	else if(hours>=6)
	{
		dn = "上午";
	}
	else if(hours>=0)
	{
		dn = "凌晨";
	}
	return dn;
}



function log_out()
{
	ht = parent.document.getElementsByTagName("html");
	ht[0].style.filter = "progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)";
	if (confirm('确实想退出？'))
	{
		delCookie();
		return true;
	}
	else
	{
		ht[0].style.filter = "";
		return false;
	}
}

var userName = decodeURI(display("userName"));
 

function showWelcome()
{
	if(userName!="")
	{
		var dn = getDateMsg();
		document.write(dn+'好'+decodeURI(userName)+'，欢迎来到南海观音网  <a  href="#" onclick="javascript:if(log_out()){window.location=\'/logout.aspx\';}" class=linkBlue>退出</a> ');
	}
	else
	{
		document.write('欢迎您： <a href=/default.aspx?pagename=register class=linkBlue>注册 </a> <a href=/default.aspx?pagename=login class=linkBlue>登录</a> ');
	}
}

 

function showLoginForm()
{
	if(userName != "")
	{
		document.write("您好，"+ userName +" 居士！<br>");	
		document.write('<a href="/forum/"  class=313236_link>进入社区</a> <a href="#"  class=313236_link onclick="javascript:if(log_out()){window.location=\'/logout.aspx\';}">退出</a>');
	}
	else
	{
		document.write("<table width=\"200\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"><tr>");
        document.write("<td width=\"50\" height=\"25\">用户名：</td>");
        document.write("<td width=\"150\" align=\"left\"><label>");
          document.write("<input name=\"username\" type=\"text\" class=\"input\" id=\"username\" size=\"15\">");
       document.write(" </label></td>");
       document.write(" </tr>");
     document.write(" <tr>");
       document.write(" <td height=\"25\">密　码：</td>");
       document.write(" <td><input name=\"password\" type=\"password\" class=\"input\" id=\"password\" size=\"15\"></td>");
       document.write(" </tr>");
      document.write("<tr>");
       document.write(" <td height=\"25\">验证码：</td>");
       document.write(" <td><input name=\"verifycode\" type=\"text\" class=\"input\" id=\"verifycode\" size=\"4\" maxlength=\"6\"> <img src=\"/verifycode.aspx\"   ></td>");
       document.write(" </tr>");
      document.write("<tr>");
       document.write(" <td height=\"30\">&nbsp;</td>");
        document.write("<td><input type=\"submit\" name=\"Submit\" value=\"登陆\"  style=\"background:#A98547; font-family:Arial,; font-size:12px; color:#FFFFFF; font-weight:bold; border:1px #fff;width:60px;height:20px\" /> ");
         document.write(" <a href=\"/default.aspx?pagename=register\" class=\"98782D_link\">佛友加入</a></td>");
       document.write(" </tr>");
    document.write("</table>");	
	}
}