/*
startList = function() {

if (document.all&&document.getElementById) {
navRoot = document.getElementById("nav_main");

for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {

node.onmouseover=function() {
this.className+=" over";
  }
  node.onmouseout=function() {
  this.className=this.className.replace(" over", "");
   }
   }
  }
 }
  
}
*/



// als je op submenu staat bijbehorende button class meegeven om lijntje links van button zichtbaar te houden.
rollOverMenu01 = function (e) { document.getElementById('btn01').className = 'TrueOpen over'; }
rollOverMenu02 = function (e) { document.getElementById('btn02').className = 'TrueOpen over'; }
rollOverMenu03 = function (e) { document.getElementById('btn03').className = 'TrueOpen over'; }
rollOverMenu04 = function (e) { document.getElementById('btn04').className = 'TrueOpen over'; }
rollOverMenu05 = function (e) { document.getElementById('btn05').className = 'TrueOpen over'; }



resetRollOverMenu = function () {
	document.getElementById('btn01').className = '';
	document.getElementById('btn02').className = '';
	document.getElementById('btn03').className = '';
	document.getElementById('btn04').className = '';
	document.getElementById('btn05').className = '';

}

function addListeners(e){
	//startList();
	
	var btn001 = document.getElementById('btn01');
	addEvent(btn001, 'mouseover', rollOverMenu01, false);
	addEvent(btn001, 'mouseout', resetRollOverMenu, false);
	
	var btn002 = document.getElementById('btn02');
	addEvent(btn002, 'mouseover', rollOverMenu02, false);
	addEvent(btn002, 'mouseout', resetRollOverMenu, false);
	
	var btn003 = document.getElementById('btn03');
	addEvent(btn003, 'mouseover', rollOverMenu03, false);
	addEvent(btn003, 'mouseout', resetRollOverMenu, false);
	
	var btn004 = document.getElementById('btn04');
	addEvent(btn004, 'mouseover', rollOverMenu04, false);
	addEvent(btn004, 'mouseout', resetRollOverMenu, false);
	
	var btn005 = document.getElementById('btn05');
	addEvent(btn005, 'mouseover', rollOverMenu05, false);
	addEvent(btn005, 'mouseout', resetRollOverMenu, false);
	

}

addEvent(window, 'load', addListeners, false);

function addEvent(elm, evType, fn, useCapture)
      // cross-browser event handling for IE5+, NS6+ and Mozilla/Gecko
      // By Scott Andrew
      {
        if (elm.addEventListener) {
          elm.addEventListener(evType, fn, useCapture); 
          return true; 
        } else if (elm.attachEvent) {
          var r = elm.attachEvent('on' + evType, fn); 
          return r; 
        } else {
          elm['on' + evType] = fn;
        }
      }