<!--
//只提交一次,检查表单

    function login_check()
    {
    var name="";
    var AtLocation=0;
     if(document.login.username.value=="")
     {
        alert("请输入你的用户名.");
		document.login.username.focus();
		 return false;
      }
     else if(document.login.username.value.length<2)
     {
         alert("用户名无效，请重新输入.");
		 document.login.username.focus();
		 return false;
      }
     else if(document.login.password.value=="")
     {
        alert("请输入你的密码.");
		document.login.password.focus();
		 return false;
      }
      else if(document.login.password.value.length<3)
      {
         alert("密码无效，请重新输入.");
		 document.login.password.focus();
		 return false;
      }
      else
	  {
	  name=document.login.username.value;
	 AtLocation=name.indexOf("@"); 
	  if(AtLocation>0)
	  {
	  name=name.substring(0,AtLocation);
	  }
         document.login.username.value=name+"@yukuang.com";
		 return true;
	  }
    }

function submitonce(theform) 
{
if(theform.stext.value=="")
{
alert("请输入要查询的内容!");
theform.stext.focus();
return false;
}
return true;
}

function SetSelected(obj)
{
obj.select();
}
//-->