if (document.images)
	{
	homeon= new Image(94,29);
	homeon.src="images/b_on_home.gif";  
	homeoff= new Image(94,29);
	homeoff.src="images/b_off_home.gif";
	homemessage= "Go to our homepage";

	enquirieson= new Image(124,29);
	enquirieson.src="images/b_on_enquiries.gif";  
	enquiriesoff= new Image(124,29);
	enquiriesoff.src="images/b_off_enquiries.gif";
	enquiriesmessage= "Please contact us for more information";

	vehicleson= new Image(192,29);
	vehicleson.src="images/b_on_vehicles.gif";  
	vehiclesoff= new Image(192,29);
	vehiclesoff.src="images/b_off_vehicles.gif";
	vehiclesmessage= "View our range of hire vehicles";

	termson= new Image(208,29);
	termson.src="images/b_on_terms.gif";  
	termsoff= new Image(208,29);
	termsoff.src="images/b_off_terms.gif";
	termsmessage= "Our terms & conditions of hire";

	linkson= new Image(142,29);
	linkson.src="images/b_on_links.gif";  
	linksoff= new Image(142,29);
	linksoff.src="images/b_off_links.gif";
	linksmessage= "Links to other useful web sites";
    }

function activate(imgName)
	{
	if (document.images)
		{
		imgOn=eval(imgName + "on.src");
		document[imgName].src= imgOn;
		imgMess=eval(imgName + "message");
		window.status=imgMess;
		}
	}

function deactivate(imgName)
	{
	if (document.images)
		{
		imgOff=eval(imgName + "off.src");
		document[imgName].src= imgOff;
		window.status="";
		}
	}