function checkLoginForm(form)
	{
	
		if(form.username.value == "")
		{
		
			alert("Username field is required");
			form.username.focus();
			return false;
		
		}else if(form.userpass.value == "")
		{
		
			alert("Password field is required");
			form.userpass.focus();
			return false;
		
		}
		
		return true;
	
	}