if (document.images)
{
    headerImages = new Array("images/blackwingheroic.png",
	                         "images/bastionheroic.png",
							 "images/throneheroic.png",
                             "images/blackwingheroic.png");   
    thisBanner = 1;
}

function cycleBanners()
{
    if (document.images)
    {
        if (document.siteHeader.complete)
        {
            //if (++thisBanner == headerImages.length)
            //    thisBanner = 0;
			thisBanner = Math.floor(Math.random() * headerImages.length);
            document.siteHeader.src = headerImages[thisBanner];
        }
    }

    // change to next banner every 15 seconds
    //setTimeout("cycleBanners()", 4300);
}