// change the number below (4) to the number of thumbnail images that you require
var thumbnailImages = new Array(20);

// below place in links to each of the images that you need to reference
thumbnailImages[0] = "../images/demoroom/001.jpg";
thumbnailImages[1] = "../images/demoroom/002.jpg";
thumbnailImages[2] = "../images/demoroom/003.jpg";
thumbnailImages[3] = "../images/demoroom/004.jpg";
thumbnailImages[4] = "../images/demoroom/005.jpg";
thumbnailImages[5] = "../images/demoroom/006.jpg";
thumbnailImages[6] = "../images/demoroom/007.jpg";
thumbnailImages[7] = "../images/demoroom/008.jpg";
thumbnailImages[8] = "../images/demoroom/009.jpg";
thumbnailImages[9] = "../images/demoroom/010.jpg";
thumbnailImages[10] = "../images/demoroom/001.jpg";


for (i=0; i < thumbnailImages.length; i++) {
    var preload = new Image();
    preload.src = thumbnailImages[i];
}

function SwapImage(thisImage)
{
	document['mainImage'].src = thumbnailImages[thisImage];
}