var curobj = new Array();
	                      
function unhide_ul(obj)
{
    // als hij in de planning staat om te sluiten, undo dat
    for (var i = 0; i<curobj.length; i++) if (curobj[i]==obj) curobj[i]=null;
    var done = false;
    
    for (var x = 0; x<obj.childNodes.length; x++)
      if (obj.childNodes[x].className == 'hidmenu') { done = true; obj.childNodes[x].className = 'unhidmenu'; }
    
    if (done) obj.className = obj.className+'sel';  
}
   
function rehide_ul(obj)
   {
    var done = false;
    
    for (var x = 0; x<obj.childNodes.length; x++)
      if (obj.childNodes[x].className == 'unhidmenu') { done = true; obj.childNodes[x].className = 'hidmenu'; }
     
    if (done) obj.className = obj.className.substr(0,obj.className.length-3);     
   }
   
function plan_rehide_ul(obj)
{
    curobj.unshift(obj); 
    setTimeout('do_rehide_ul()', 1000);
}
   
function do_rehide_ul()
{
 if (curobj.length>0)
     {
      node = curobj.pop();
      if (node != null) rehide_ul(node);
     }
}
   
function switchcontent(basename, knopid, knopcount, hlclass, normalclass)
{
  for (i=1; i<=knopcount; i=i+1)
  {
   obj = document.getElementById(basename+'knop'+i);
   content = document.getElementById(basename+'content'+i);
   
   if (i==knopid) { obj.className = hlclass; content.className = 'show'; }
             else { obj.className = normalclass; content.className = 'hide'; } 
  }
}