Rollimage = new Array()
Rollimage[0] = new Image(88,17) 
Rollimage[0].src = "i/thumbs5-1.jpg" 
Rollimage[1] = new Image(88,17)
Rollimage[1].src = "i/thumbs5-2.jpg"
Rollimage[2] = new Image(88,17)
Rollimage[2].src = "i/thumbs5-3.jpg"
Rollimage[3] = new Image(88,17)
Rollimage[3].src = "i/thumbs5-4.jpg"
Rollimage[4] = new Image(88,17)
Rollimage[4].src = "i/thumbs5-5.jpg"
Rollimage[5] = new Image(88,17)
Rollimage[5].src = "i/thumbs5-6.jpg"
Rollimage[6] = new Image(88,17)
Rollimage[6].src = "i/thumbs5-7.jpg"
Rollimage[7] = new Image(88,17)
Rollimage[7].src = "i/thumbs5-8.jpg"
Rollimage[8] = new Image(88,17)
Rollimage[8].src = "i/thumbs5-9.jpg"
Rollimage[9] = new Image(88,17)
Rollimage[9].src = "i/thumbs5-10.jpg"
Rollimage[10] = new Image(88,17)
Rollimage[10].src = "i/thumbs5-11.jpg"
Rollimage[11] = new Image(88,17)
Rollimage[11].src = "i/thumbs5-12.jpg"
Rollimage[12] = new Image(88,17)
Rollimage[12].src = "i/thumbs5-13.jpg"
Rollimage[13] = new Image(88,17)
Rollimage[13].src = "i/thumbs5-14.jpg"
Rollimage[14] = new Image(88,17)
Rollimage[14].src = "i/thumbs5-15.jpg"
Rollimage[15] = new Image(88,17)
Rollimage[15].src = "i/thumbs5-16.jpg"

function SwapOut(buttonno, imgNo) {
  buttonno.src = Rollimage[imgNo].src;
  return true;
} 

function SwapBack(buttonno, imgNo){
  buttonno.src = imgNo;
  return true;
}