// JavaScript Document
	function validate_login(frm) {
		var msg = "";

		var f = document.forms[frm];
		
		if (f.username.value == "") {
			document.getElementById('username').style.backgroundColor = "#FFFF00";
			msg += "Please enter your username.\n";
		}

		if (f.password.value == "") {
			document.getElementById('password').style.backgroundColor = "#FFFF00";
			msg += "Please enter your password.\n";
		}		
			
		if (msg != "") {
			alert(msg);
			return false;
		}
		
		return true;
	}