function login(){
		var access
		access = ""
		if(document.login.user_id.value==""){
			access="no"
			alert("Plese Enter User Id");
			document.login.user_id.focus();
		}
		if(document.login.pass.value==""){
			access="no"
			alert("Plese Enter Your Password");
			//document.login.pass.focus();
		}
		if(access==""){
			document.login.action="check_user.asp";
			document.login.submit();
		}
	}