var contact_form = {
	validate: function() {
		var elmnts = ['name', 'email', 'telephone'];
		var errors = 0;
		for(var eli = elmnts.length-1; eli >= 0; eli--) {
			var ob = $(elmnts[eli]);
			if(ob.value == "") {
				ob.style.border = "1px solid red";
				errors++;
			} else {
				ob.style.border = "1px solid #555";					
			}
		}
		if(errors != 0) {
			if($('alert_box').style.display == "none") {
				new Effect.Appear('alert_box');
			} else {
				new Effect.Pulsate('alert_box');
			}
			return false;
		} else {
			new Effect.Fade('alert_box');
			return true;	
		}
	}
}