function mouseover(picName,picNumber)
{
 if(IE)
  document.images[picName].src = overPic[picNumber].src
 else
  document.layers['div1'].document.images[picName].src = overPic[picNumber].src

}

function mouseout(picName,picNumber)
{
 if(IE)
   document.images[picName].src = normalPic[picNumber].src
 else
   document.layers['div1'].document.images[picName].src = normalPic[picNumber].src
}