var Layername, Xgoal, Ygoal, Xhop, Yhop;

function MakeName(LayerID){
  if (navigator.appName=="Netscape")
     {Refname=eval("document." + LayerID)}
  else
     {Refname=eval("document.all." + LayerID + ".style")}
  return Refname
}

function Slide() {
  if ((parseInt(Layername.top) != Ygoal))     
     {Layername.top = parseInt(Layername.top) + Yhop}
  else
     {Layername.top = parseInt(Layername.top) + 0}
  window.setTimeout("Slide()", Delay)
}