function DisplayPDF()
{
  var TLayer = document.getElementById('toneLayer');
  TLayer.style.height = document.documentElement.scrollHeight + 'px';
  TLayer.style.display='block';
  var STFLayer = $('.PDFLayer');
  STFLayer.css('display', 'block');
  //STFLayer.style.display='block';
  //scrollDivDown('SendToFriend')*/
}

function HidePDF()
{

  //var STFLayer = document.getElementsByName('PDFLayer');
  var STFLayer = $('.PDFLayer');
  STFLayer.css('display', 'none');
  //STFLayer.style.display='none';
  
  var TLayer = document.getElementById('toneLayer');
  TLayer.style.display='none';
}

step=1;
function scrollDivDown(id)
{ 
  if(document.getElementById(id).offsetHeight<=400)
  {
   step=document.getElementById(id).offsetHeight+1;
   document.getElementById(id).style.height=step+'px';
    timerDown = setTimeout("scrollDivDown('" + id + "')", 50);
   }
}