<!-- Begin Gravity1
var frontblue = new Image();
var backblue = new Image();
var frontred = new Image();
var backred = new Image();
var frontasphalt = new Image();
var backasphalt = new Image();

frontblue.src = "products/gravity1-includes/front-blue-no-tag.png";
backblue.src = "products/gravity1-includes/back-blue-no-tag.png";
frontred.src = "products/gravity1-includes/front-red-no-tag.png";
backred.src = "products/gravity1-includes/back-red-no-tag.png";
frontasphalt.src = "products/gravity1-includes/front-asphalt-no-tag.png";
backasphalt.src = "products/gravity1-includes/back-asphalt-no-tag.png";

function doButtons(frontimage, backimage) {
document['front'].src=frontimage;
document['back'].src=backimage;
}
//  End Gravity1 -->