if (document.images) {
  var temp = new Array(18);
  for (i = 0;i < 18;i++) {
    temp[i] = new Image();
  }

  temp[0].src="/images/rollovers/homeon.gif";
  temp[1].src="/images/rollovers/abouton.gif";
  temp[2].src="/images/rollovers/instructorson.gif";
  temp[3].src="/images/rollovers/studioon.gif";
  temp[4].src="/images/rollovers/scheduleon.gif";
  temp[5].src="/images/rollovers/priceson.gif";
  temp[6].src="/images/rollovers/wttoff.gif";
  temp[7].src="/images/rollovers/directionson.gif";
  temp[8].src="/images/rollovers/contacton.gif";  
        
  temp[9].src="/images/rollovers/homeoff.gif";
  temp[10].src="/images/rollovers/aboutoff.gif";
  temp[11].src="/images/rollovers/instructorsoff.gif";
  temp[12].src="/images/rollovers/studiooff.gif";
  temp[13].src="/images/rollovers/scheduleoff.gif";
  temp[14].src="/images/rollovers/pricesoff.gif";
  temp[15].src="/images/rollovers/wttoff.gif";
  temp[16].src="/images/rollovers/directionsoff.gif";
  temp[17].src="/images/rollovers/contactoff.gif";  

  
  }

function imgOn(strName)
{
  if (document.images)
    document.images[strName.toString()].src = "/images/rollovers/" + strName.toString() + "on.gif"
}

function imgOff(strName)
{
  if (document.images)
    document.images[strName.toString()].src = "/images/rollovers/" + strName.toString() + "off.gif"
}