function UserSubmitForLogin(){
    var thisform=document.userloginform
		thisform.target="iframe_hidden_admin";
       if(thisform.username.value=="")
	{
		alert("请输入用户帐号!");
		thisform.username.focus();
		return false;
	}
		if(thisform.password.value=="")
	{
		alert("请输入用户密码!");
		thisform.password.focus();
		return false;
	}
}

function UserExitLogin(){
  document.all.iframe_hidden_admin.src="/sysmain/exit.jsp";
 
}