function login_validate()
{
	if(document.loginfrm.username.value == "")
	{
		alert("Enter User Name !");
		document.loginfrm.username.focus();
		return false;
	}
	if(document.loginfrm.password.value == "")
	{
		alert("Enter Password !");
		document.loginfrm.password.focus();
		return false;
	}	
	return true;	
}