function DropDownMenu(id,menu)
{
Menu = document.getElementById(menu);
Menu.style.visibility = '';
Menu.style.display = '';

    //alert('ID '+id);
     
    var parent = document.getElementById(id);
    var left = 0;
    var top = 0;
             
    while (parent != null)
      {
       left +=  parent.offsetLeft;
       top  +=  parent.offsetTop;
       parent = parent.offsetParent;
      }          
    
    
    var posX = left-4;
    var posY = top + document.getElementById(id).offsetHeight;
             
    
  
//posX = id.offsetTop + id.parent.offsetTop;


Menu.style.left = posX +'px';
Menu.style.top = posY+'px';

}


function DropUpMenu(id,menu)
{
Menu = document.getElementById(menu);
Menu.style.visibility = 'hidden';
Menu.style.display = 'none';

}