function showUserLabel(elemToPointAt, text)
{
   var userlabeltextelem = document.getElementById("userlabeltext");
   userlabeltextelem.innerHTML = text;

   var userlabel = document.getElementById("userlabel");
   userlabel.style.visibility = 'visible';

   var pos = $(elemToPointAt).offset();
   var y = pos.top - $(userlabel).outerHeight() - 1;
   var x = pos.left - ($(userlabel).outerWidth()/2) + ($(elemToPointAt).outerWidth()/2);

   userlabel.style.top = y + "px"; 
   userlabel.style.left = x + "px"; 
}

function hideUserLabel()
{
   var userlabel = document.getElementById("userlabel");
   userlabel.style.visibility = 'hidden';
}