function seleMode()
{
    var ddlvalue=document.getElementById('ddlType').value;
    if(ddlvalue=="0" || ddlvalue=="1")
    {
         document.getElementById('trUser').className='';
         document.getElementById('trShop').className='none';
         document.getElementById("pwd").innerHTML="会员密码";
    }
    if(ddlvalue=='2')
    {
         document.getElementById('trShop').className='';
         document.getElementById('trUser').className='none';
         document.getElementById("pwd").innerHTML="管理密码";
    }
    else if(ddlvalue=='3')
    {
        window.location="Admin/Login.aspx";
    }
 }
 function chkLogin()
 {
   var ddlType=document.getElementById('ddlType');
   var ddlshop=document.getElementById('ddlShop');
   if(ddlType.value=="0")
   {
     alert("提示:请先选择登录方式"); 
     ddlType.focus();
	 return false;
   }
   else if(ddlType.value=='2')
   {    
        if(document.getElementById("txtPwd").value=='')
        {
            alert("密码不能为空！");
            return false;
        } 
        if(ddlshop.value=='0')
        {
           alert("请选择查账店铺！");
           return false;
        }
   }
   else
   {
       if(document.getElementById('txtName').value=='')
       {
            alert("用户名不能为空！");
            return false;
       }
        if(document.getElementById("txtPwd").value=='')
        {
            alert("密码不能为空！");
            return false;
        }       
    }
    var key = "'";
    if (document.getElementById("txtPwd").value.indexOf(key)!=-1) 
    {
        alert("不能包含关键字");
	    return false;
    }
}