<!--
/* ***************************************************************************************************************************
 * Code voor het weergeven van pull-down menu's
 */
function at_display(x)
{
  win = window.open();
  for (var i in x) win.document.write(i+' = '+x[i]+'<br>');
}

// ----- Show Aux -----

var pull_down = false;

function at_show_aux(parent, child)
{
    var audioPlayer = document.getElementById('player');
    if( audioPlayer )
    {
      	audioPlayer.style.visibility = 'hidden';
    }

	if( pull_down == true )
		return;
	
	pull_down = true;
	
	var p = document.getElementById(parent);
	var c = document.getElementById(child);

	var top  = (c["at_position"] == "y") ? p.offsetHeight+2 : 0;
	var left = (c["at_position"] == "x") ? p.offsetWidth +2 : 0;
	for (; p; p = p.offsetParent)
	{
    	top  += p.offsetTop;
    	left += p.offsetLeft;
	}
  
	c.style.position   = "absolute";
	c.style.top        = top +'px';
	c.style.left       = left+'px';
	c.style.border	 = "1px solid black";
 	c.style.visibility = "visible";
 }

// ----- Show -----

function showTime( p, c )
{
 	at_show_aux(p.id, c.id);
	clearTimeout(c["at_timeout"]);
}

function time2Hide( c )
{
	var elem = document.getElementById( c );
	if( elem )
		elem.style.visibility = 'hidden';
	pull_down = false;
	var audioPlayer = document.getElementById('player');
	if( audioPlayer )
	{
		audioPlayer.style.visibility = 'visible';
	}
}

function at_show()
{
	p = document.getElementById(this["at_parent"]);
	c = document.getElementById(this["at_child" ]);
	if( pull_down )
		showTime(p,c);
	else 
		setTimeout( "showTime(p,c)", 100 );
}

// ----- Hide -----

function at_hide()
{
	c = document.getElementById(this["at_child"]);

//	c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.visibility = 'hidden'; pull_down = false;", 400 );
	c["at_timeout"] = setTimeout("time2Hide('" + c.id + "')", 400 );
}

// ----- Click -----

function at_click()
{
   p = document.getElementById(this["at_parent"]);
  c = document.getElementById(this["at_child" ]);

  if (c.style.visibility != "visible") at_show_aux(p.id, c.id);
  else c.style.visibility = "hidden";

  return false;
}

// ----- Attach -----

// PARAMETERS:
// parent   - id of visible html element
// child    - id of invisible html element that will be dropdowned
// showtype - "click" = you should click the parent to show/hide the child
//            "hover" = you should place the mouse over the parent to show
//                      the child
// position - "x" = the child is displayed to the right of the parent
//            "y" = the child is displayed below the parent
// cursor   - Omit to use default cursor or check any CSS manual for possible
//            values of this field

function at_attach(parent, child, showtype, position, cursor)
{
	p = document.getElementById(parent);
  c = document.getElementById(child);

  p["at_parent"]     = p.id;
  c["at_parent"]     = p.id;
  p["at_child"]      = c.id;
  c["at_child"]      = c.id;
  p["at_position"]   = position;
  c["at_position"]   = position;

  c.style.position   = "absolute";
  c.style.visibility = "hidden";

  if (cursor != undefined) p.style.cursor = cursor;

	switch (showtype)
	{
    case "click":
    	p.onclick     = at_click;
  		p.onmouseout  = at_hide;
		c.onmouseover = at_show;
		c.onmouseout  = at_hide;
    	break;
    	
    case "hover":
    	p.onmouseover = at_show;
 		p.onmouseout  = at_hide;
		c.onmouseover = at_show;
		c.onmouseout  = at_hide;
    break;
	}
 }
  
//-->