// This is where you preload your images

	commercials          = new Image (1,1);
        commercials.src      = "img/commercialbutton-off.gif";

      commercialslit          = new Image (1,1);
        commercialslit.src      = "img/commercialbutton-on.gif";

	nonprofit          = new Image (1,1);
        nonprofit.src      = "img/non-profitbutton-off.gif";

      nonprofitlit          = new Image (1,1);
        nonprofitlit.src      = "img/non-profitbutton-on.gif";

	longform          = new Image (1,1);
        longform.src      = "img/longformbutton-off.gif";

      longformlit          = new Image (1,1);
        longformlit.src      = "img/longformbutton-on.gif";

	keeneland          = new Image (1,1);
        keeneland.src      = "img/keenelandbutton-off.gif";

      keenelandlit          = new Image (1,1);
        keenelandlit.src      = "img/keenelandbutton-on.gif";

// this function swaps the images

function swapImage(oldButton,newButton){
document.images[oldButton].src=eval(newButton + ".src");
						   }
// end