//------------------------------------------------------------------------------
function over_menu(id)
{
    var ItmId1 = document.getElementById(id);
    ItmId1.style.display = "block";
}

//------------------------------------------------------------------------------
function out_menu(id)
{
    var ItmId1 = document.getElementById(id);
    ItmId1.style.display = "none";
}

//------------------------------------------------------------------------------
function over_menu2(id1, id2)
{
    var ItmId1 = document.getElementById(id1);
    ItmId1.style.display = "block";
    var ItmId2 = document.getElementById(id2);
    ItmId2.style.display = "block";
}

//------------------------------------------------------------------------------
function out_menu2(id1, id2)
{
    var ItmId1 = document.getElementById(id1);
    ItmId1.style.display = "none";
    var ItmId2 = document.getElementById(id2);
    ItmId2.style.display = "none";
}

//------------------------------------------------------------------------------
function over_menu3(id1, id2, id3)
{
    var ItmId1 = document.getElementById(id1);
    ItmId1.style.display = "block";
    var ItmId2 = document.getElementById(id2);
    ItmId2.style.display = "block";
    var ItmId3 = document.getElementById(id3);
    ItmId3.style.display = "block";
}

//------------------------------------------------------------------------------
function out_menu3(id1, id2, id3)
{
    var ItmId1 = document.getElementById(id1);
    ItmId1.style.display = "none";
    var ItmId2 = document.getElementById(id2);
    ItmId2.style.display = "none";
    var ItmId3 = document.getElementById(id3);
    ItmId3.style.display = "none";
}

//------------------------------------------------------------------------------
function ShowHide(id1)
{
 if (id1 != '') expMenu(id1);
}

//------------------------------------------------------------------------------
function expMenu(id)
{
 var itm = null;
 if (document.getElementById) { itm = document.getElementById(id); }
 else if (document.all) { itm = document.all[id]; }
 else if (document.layers) { itm = document.layers[id]; }

 if (!itm) {}
 else
 if (itm.style)
 {
  if (itm.style.display == "none") { itm.style.display = ""; }
  else { itm.style.display = "none"; }
 }
 else { itm.visibility = "show"; }

 c_id = id;
 for (i = 0; i < 13; i++)
 {
 	var itm = null;
 	id = 'drop'+i;
 	if ( id != c_id )
 	{
    	itm = document.getElementById(id);
    	if (!itm) {}
		else
    	{
 			itm.style.display = "none";
 	    }
 	}
 }

}