// Load images into browsers cache //
if(document.images)
{
var buttonImages = Array(20);
for(init = 0;init < 20;init++)
{buttonImages[init] = new Image();}
buttonImages[0].src = "art/home1.gif";
buttonImages[1].src = "art/home_2.gif";
buttonImages[2].src = "art/services1.gif";
buttonImages[3].src = "art/services_2.gif";
buttonImages[4].src = "art/apply1.gif";
buttonImages[5].src = "art/apply_2.gif";
buttonImages[6].src = "art/resource1.gif";
buttonImages[7].src = "art/resource_2.gif";
buttonImages[8].src = "art/contact1.gif";
buttonImages[9].src = "art/contact_2.gif";
buttonImages[10].src = "art/whyttl.gif";
buttonImages[11].src = "art/whyttl_2.gif";
buttonImages[12].src = "art/whatisabs.gif";
buttonImages[13].src = "art/whatisabs_2.gif";
buttonImages[14].src = "art/ithought.gif";
buttonImages[15].src = "art/ithought_2.gif";
buttonImages[16].src = "art/resowners.gif";
buttonImages[17].src = "art/resowners_2.gif";
buttonImages[18].src = "art/links.gif";
buttonImages[19].src = "art/links_2.gif";
}

// Function to show 'off' image //
function showOff(name,number)
{
	if(document.images)
	{
		document[name].src = buttonImages[number].src;
		return true;
	}
}

// Function to show 'on' image //
function showOn(name,number)
{	
	if(document.images)
	{
		document[name].src = buttonImages[number].src;	
		return true;
	}
}