function DoResize()
{
    if(typeof(initMainMenu)=="function") initMainMenu();
}

//The the obsolutly left and top values for a HTML object
function fetchOffset(obj) 
{
    var left_offset = obj.offsetLeft;
    var top_offset = obj.offsetTop;
    while((obj = obj.offsetParent) != null) 
    {
      left_offset += obj.offsetLeft;
      top_offset += obj.offsetTop;
    }
    return {'left':left_offset,'top':top_offset};
}