function mevent(mEvent)
{

 sub_menu_id = document.getElementById('sub_menu_div');
 if(!sub_menu_id)
 return;

    if(sub_menu_id.style.display != 'none')
    {
     x = absPosition(sub_menu_id).x;
     w = x + sub_menu_id.offsetWidth;
     y = absPosition(sub_menu_id).y;
     h = y + sub_menu_id.offsetHeight;


          if( x <= mEvent.clientX && mEvent.clientX <= w && y <= mEvent.clientY+document.body.scrollTop && mEvent.clientY+document.body.scrollTop <= h )
          {
           sub_menu_used = 1;
           return;
          }

          else if(sub_menu_used)
          {
           sub_menu_used = 0;
           sub_menu_id.style.display = 'none';
          }
    }

}











var sub_menu_used = 0;


function sub_menu(x, y, show)
{
 var si;
 var sub_content = "";
 var str = "";

 sub_menu_id = document.getElementById('sub_menu_div');
 if(!sub_menu_id)
 return;

    if(!show)
    {
     sub_menu_id.style.display = 'none';
     return;
    }

 sub_menu_id.style.left  = x + "px";
 sub_menu_id.style.top   = y + "px";


 if(show)
 sub_menu_id.style.display = 'block';
}