function getRandomImage()
{
    var theImages = new Array("Home1.jpg", "Home2.jpg", "Home3.jpg", "Home4.jpg", "Home5.jpg");
    var p = theImages.length;
    var preBuffer = new Array();
    
    for (i = 0; i < p; i++)
    {
        preBuffer[i] = new Image()
        preBuffer[i].src = theImages[i]
    }

    var whichImage = Math.round(Math.random() * (p - 1));

    return theImages[whichImage];
    
}