var imageNames = new Array();

imageNames[imageNames.length] = "Guest.gif";
imageNames[imageNames.length] = "GuestON.gif";

imageNames[imageNames.length] = "BrideGroom.gif";
imageNames[imageNames.length] = "BrideGroomON.gif";

imageNames[imageNames.length] = "OurCompany.gif";
imageNames[imageNames.length] = "OurCompanyON.gif";

var images = new Array();
var i;

for (i = 0; i < imageNames.length; i++) {
    images[i] = new Image();
    images[i].src = "images/" + imageNames[i];
}

function highlight(imgObj, img)
{
    imgObj.src = "images/" + img;
}