var gobjUpTime;
var gobjDownTime;


function Scrolldown()
{
  gblnScroll = true;
  var objImageViewer = window.document.all("ImageViewer2");
  objImageViewer.doScroll("scrollbarDown");
  gobjDownTime = setTimeout("Scrolldown()",100);


}

function Scrollup()
{
  gblnScroll = true;
  var objImageViewer = window.document.all("ImageViewer2");
  objImageViewer.doScroll("scrollbarUp");
  gobjUpTime = setTimeout("Scrollup()",100);


}