var agt=navigator.userAgent.toLowerCase();
    var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    var is_win    = ((agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
    var is_mac    = (agt.indexOf("mac")!=-1);
    var is_opera  = (agt.indexOf("opera") != -1);
    var is_konq   = (agt.indexOf("konquer") != -1);

    if (is_ie) {
      var oHEAD=document.getElementsByTagName('HEAD').item(0);
      var nLink=document.createElement('LINK');
      nLink.rel="stylesheet";
      nLink.type="text/css";

      if (is_win) {
       var nCss2Style=document.getElementsByTagName('STYLE').item(1);
       nLink.href="/layout/layout_ie_pc.css";
       oHEAD.replaceChild(nLink,nCss2Style);
      } else if (is_mac) {
       nLink.href="/layout/layout_ie_mac.css";
       document.styleSheets[1].disabled = true;
       document.write('<link rel="'+nLink.rel+'" type="'+nLink.type+'" href="'+nLink.href+'" />');

       window.onresize = setHeight;
      }
    }

    function setHeight ()
    {
        subMarPad = 220; /* the total value of margins and padding to subtract from the body height */
        mainDiv = document.getElementById('main');
        mainDiv.style.top = (parseInt(document.body.clientHeight)/2 - subMarPad) + "px";
        mainDiv.style.visibility = "visible";
    }


    function wopen(obj, w, h)
    {
      if(!w) { w = 800; }
      if(!h) { h = 600; }
      winoptions="height="+h+",width="+w+",,"+
                 ",menubar=no,resizable=yes,scrollbars=yes,status=no,titlebar=no,toolbar=no";
      win=window.open("","info",winoptions);
      win.location.href=obj.href;
      if (parseInt(navigator.appVersion) >= 4)
                    { win.window.focus(); }
      return false;
    }

//SCRIPT  OM BUTTONS IN DIVERSE NAVIGATIEITEMS TE ACTIVEREN		
function setNav()
   {
      if(document.getElementsByTagName)
      {
		 navsrc = document.getElementsByTagName("body");

		 if( navsrc[0] && document.getElementById( "n" + navsrc[0].getAttribute('id') )  )
		      document.getElementById("n" + navsrc[0].getAttribute('id') ).className = 'activated';

		
      }		
    }
    
   
//SCRIPT  OM BUTTONS IN DIVERSE NAVIGATIEITEMS TE ACTIVEREN
    
    function set_active_link(url,menuNodeID,pathNodeID,pathSeparator){

    	if( document.getElementById(menuNodeID)){
	    	var nav = document.getElementById(menuNodeID);

	    	nav_links = nav.getElementsByTagName("a");
	    	for(i=0;i<nav_links.length;i++){
	    		if(url == nav_links[i].href){
	    			active_item =  nav_links[i];
	    		}
	    	}

	    	if(document.getElementById(pathNodeID)){
				var pathNode = document.getElementById(pathNodeID);
				if(pathSeparator.length){
					var pathSepNode = document.createTextNode(pathSeparator);
				}
			}
	    	while (active_item.id != menuNodeID){
	    		active_item.style.display="";
	    		if(active_item.childNodes){
                    for(c=0;c<active_item.childNodes.length;c++){
	    				childNode = active_item.childNodes[c];
	    				if(childNode.style && childNode.tagName!="A"){ 
                            childNode.className="display";
	    				}
	    				if(childNode.tagName=="A"){
                            childNode.className="activated";
	    					if(pathNode){
	    						var linkNode = childNode.cloneNode(true);
	    						var sepNode = pathSepNode.cloneNode(true);
                                    if(pathNode.hasChildNodes()){
                                        pathNode.insertBefore(sepNode,pathNode.childNodes[0]);
                                        pathNode.insertBefore(linkNode,pathNode.childNodes[0]);
	    						}
		    					else{
                                    pathNode.appendChild(linkNode);
		    					}
	    					}
	    				}
	    			}
	    		}
	    		active_item = active_item.parentNode;
	    	}
    	}
    }
    
    function loader(){
    	set_active_link(document.location.href,"subnavigatie","path"," -> ");
    }

//SCRIPT OM CONTENTBLOKKEN TE TOGLEN
function SwitchMenu(obj){
	if(document.getElementById){
	var el = document.getElementById(obj);
	// var ar = document.getElementById("navitem3").getElementsByTagName("dd");
	var ar = document.getElementsByTagName("dd");
		if(el.style.display == "none"){
			for (var i=0; i<ar.length; i++){
				ar[i].style.display = "none";
			}
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
}    
    function doInit () 
	{
      if (is_ie && is_mac) { setHeight(); }
      loader();
	  setNav();
    }
    
    window.onload = doInit;