function zipFocus(t)
{
    if (t.value == "Enter Zip Code")
        t.value = "";
    else t.select();
}
function zipBlur(t)
{
    if (t.value == "")
        t.value = "Enter Zip Code";
}
function rotateImage()
{
    var imgArray = ['railtones.jpg','element.jpg'];
    var hrefArray = ['http://images.techlighting.com/Common/tl_railtones_brochure.pdf', 'http://www.element-lighting.com'];
    
    var imgObj = $get("homeImg");
    var imgURL = $get("homeURL");
    var randNum = Math.floor(Math.random()*2);
    
    imgObj.src = "http://images.techlighting.com/Tech/home_images/" + imgArray[randNum];
    imgURL.href = hrefArray[randNum];
}