// menu banner rollovers

	function change(n){
		var strroll = "url(img/roll_" + [n] + ".jpg)"
		document.getElementById("navroll").style.backgroundImage = strroll;
		document.getElementById("navroll").style.backgroundPosition = "center";
	}
	
	function change_back(){
		document.getElementById("navroll").style.backgroundImage = "none";
		document.getElementById("navroll").style.backgroundColor = "#660000";
	}