function showToolTip(e,text)
{ 
      document.all.ToolTip.innerHTML="<table><tr><td class=ToolTipTD><img src='/img/instr/Img"+text+".jpg' width=230></td></tr></table>"; 
      ToolTip.style.pixelLeft=(e.x+-150+document.body.scrollLeft); 
      ToolTip.style.pixelTop=(e.y+document.body.scrollTop); 
      ToolTip.style.visibility="visible"; 
} 
function hideToolTip()
{ 
      ToolTip.style.visibility="hidden"; 
}