function preload()
{
  var folder = "/cp/assets/images/buttons/over/"
  var count
  var menuimages = new Array()
  menuimages[0] = "aboutus.gif"
  menuimages[1] = "services.gif"
  menuimages[2] = "links.gif"
  menuimages[3] = "terms.gif"
  menuimages[4] = "careers.gif"
  menuimages[5] = "contactus.gif"
  for(count in menuimages)
  {
    var imageobj = new Image()
    imageobj.src = folder + menuimages[count]
  }
}

function rollin(imageid)
{
  document.getElementById(imageid).src = "/cp/assets/images/buttons/over/" + imageid + ".gif"
}

function rollout(imageid)
{
  document.getElementById(imageid).src = "/cp/assets/images/buttons/" + imageid + ".gif"
}