function showToolTip(e,text){
  if(document.all)e = event;
  var obj = document.getElementById('bubble_tooltip');
  var obj2 = document.getElementById('bubble_tooltip_content');
  obj2.innerHTML = text;
  obj.style.display = 'block';
  var st = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
  if(navigator.userAgent.toLowerCase().indexOf('safari')>=0)st=0;
  var leftPos = e.clientX - 100;
  if(leftPos<0)leftPos = 0;
  obj.style.left = leftPos + 'px';
  obj.style.top = e.clientY - obj.offsetHeight -1 + st + 'px';
}

function hideToolTip() {
  document.getElementById('bubble_tooltip').style.display = 'none';
}