function hideAd(divId) 
{ 
  if (document.layers) document.layers[divId].visibility = 'hide';
  else if (document.all) document.all[divId].style.visibility = 'hidden';
  else if (document.getElementById) document.getElementById(divId).style.visibility = 'hidden';
}

function adDown(divId) 
{ 
  state=typeof topPos;
  if(state=='undefined') topPos=0;
  if(topPos < 100)
  { 
    topPos+=3;
    if (document.layers) document.layers[divId].top = topPos;
    else if (document.all) {
	document.all[divId].style.top = topPos;
    }
    else if (document.getElementById) {
	document.getElementById(divId).style.top = topPos;		
    }
    setTimeout("adDown('pop');",25);
  }
}