//Loads the darker image when rolling over
function mouseOver(sElmName)
{
    document.getElementById(sElmName).src="images/img_" + sElmName + "_Dark.gif"
}
//removes darker image
function mouseOut(sElmName)
{
    document.getElementById(sElmName).src = "images/img_" + sElmName + ".gif"
  }


  //Loads the darker image when rolling over
  function mouseOn(sElmName) {
      document.getElementById(sElmName).src = "images/img_" + sElmName + "ON.gif"
  }
  //removes darker image
  function mouseOff(sElmName) {
      document.getElementById(sElmName).src = "images/img_" + sElmName + "OFF.gif"
  }