function initHover()
{
 var pNav = document.getElementById("packagesNav");
 var anchors = pNav.getElementsByTagName("a");
 
 for (var i = 0; i < anchors.length; i++)
 {
  
  anchors[i].onmouseover = function()
  {
   this.parentNode.style.backgroundPosition = "bottom left";
   
   return true;
  }
  
  anchors[i].onmouseout = function()
  {
   this.parentNode.style.backgroundPosition = "top left";
   
   return true;
  }
  
 }
 
 return true;
}

addLoadListener(initHover, false);