var menuover=new Image();menuover.src="images/menu-over.gif";
var directionsover=new Image();directionsover.src="images/directions-over.gif";
var contactover=new Image();contactover.src="images/contact-over.gif";

function setupNavRolls(){
	$(".navroll").each(function(){
		var $thisimg = $(this);
		if(!$thisimg.hasClass("selected")){
			$thisimg.bind("mouseenter",function(){
				var thissrc = $thisimg.attr("src");
				var thisoversrc = thissrc.replace(".gif","-on.gif");
				$thisimg.attr("src",thisoversrc);
			});
			$thisimg.bind("mouseleave",function(){
				var thissrc = $thisimg.attr("src");
				var thisoffsrc = thissrc.replace("-on.gif",".gif");
				$thisimg.attr("src",thisoffsrc);
			});
		}
	});
}

$(document).ready(function(){
	setupNavRolls();
});