function loadAltsrc() {
  var thisImg = loadAltsrc.arguments[0];
  thisImg.altsrc        = new Array();
  thisImg.altsrc[0]     = new Image();
  thisImg.altsrc[0].src = thisImg.src;
  thisImg.altsrc[1]     = new Image();
  thisImg.altsrc[1].src = loadAltsrc.arguments[1];
}

function sldAltsrc(ID,index,text){
  var img=document.images[ID];
  img.src=img.altsrc[index].src; ;
  window.status = ( text === "" ) ? window.defaultStatus : text ;
  return true;
}