function showdiv(name)
 {
  if (document.all)
  {
   eval('document.all.' + name + '.style.visibility = "visible" ');
  } else if (document.layers) 
  {
   eval('document.layers["' + name + '"].visibility = "visible" ');
  } else if (document.getElementById) 
  {
   eval('document.getElementById("' + name + '").style.visibility = "visible" ');
  }
 }
 function hidediv(name)
 {
  if (document.all)
  {
   eval('document.all.' + name + '.style.visibility = "hidden" ');
  }  
  else if (document.layers) 
  {
   eval('document.layers["' + name + '"].visibility = "hidden" ');
  } 
  else if (document.getElementById) 
  {
   eval('document.getElementById("' + name + '").style.visibility = "hidden" ');
  }
 }