if (document.images) 
{
	var boardNum = 0;
	var boardSpeed = 3000;

	// Create an array of images for hte billboard
	var billboard = new Array ();
	billboard[0] = new Image();
	billboard[0].src = "Graphics/avn20d2.jpg";
	billboard[1] = new Image();
	billboard[1].src = "Graphics/GarminNUVI780_sm.jpg";
	billboard[2] = new Image();
	billboard[2].src = "Graphics/shop.jpg";

	// Create an array of URLs that correspond to the images
	var site = new Array();
	site[0] = "AboutUs.html";
	site[1] = "http://www.yahoo.com";
	site[2] = "http://www.msn.com";
}

// Function to rotate the images on the billboard
function rotateBoard()
{
	if (boardNum < (billboard.length - 1))
	{
		boardNum++;
	}
	else
	{
		boardNum = 0;
	}
//mbg	document.billboard.src = billboard[boardNum].src;
	setTimeout('rotateBoard()', boardSpeed);
}

// Function to load the appropriate URL when the user clicks on an image
function jumpBillboard()
{
	alert(boardNum);
	window.location.href = site[boardNum];
}