function showTip(unitNo, e)
{
	var divNode =	document.getElementById("shopInfo");
	divNode.innerHTML = document.getElementById("label" + unitNo).innerHTML + "<br/>Click for more information..."
	divNode.style.display="";
	
	if (window.addEventListener) 
  	 window.addEventListener("mousemove", moveTip, false);
  else
   	 document.attachEvent("onmousemove", moveTip);
}

function clearTip()
{
  document.getElementById("shopInfo").style.display = "none"
	
	if (window.removeEventListener) 
  	 window.removeEventListener("mousemove", moveTip, false);
  else
   	 document.detachEvent("onmousemove", moveTip);
}

function moveTip(event)
{
  var posx = 0;
  var posy = 0;

  if (event.pageX || event.pageY)
  {
      posx = event.pageX;
      posy = event.pageY;
  }
  else if (event.clientX || event.clientY)
  {
      posx = event.clientX + document.body.scrollLeft;
      posy = event.clientY + document.body.scrollTop;
  } 
	posx+=10;
	
	var divNode =	document.getElementById("shopInfo");
	divNode.style.left = posx + "px";
  divNode.style.top = posy + "px";
}