window.addEvent('domready', function() {

   // Adaption IE6
   if(window.ie6) var heightValue='100%';
   else var heightValue='';

   // Selectors of the containers for switches and content
   var togglerName='ul li a.toggler_';
   var contentName='ul.sub_';
   var element=$('menu');


   // Position selectors
   var counter=1;   
   var toggler=$$(togglerName+counter);
   var content=$$(contentName+counter);

   while(toggler.length>1)
   {
      // Apply accordion
      new Accordion(element, toggler, content, {
         opacity: false,
         display: false,
         alwaysHide: true,
         onComplete: function() { 
            var element=$(this.elements[this.previous]);
            if(element && element.offsetHeight>0) element.setStyle('height', heightValue);         
         },
         onActive: function(toggler, content) {
            toggler.addClass('open');
         },
         onBackground: function(toggler, content) {
            toggler.removeClass('open');
         }
      });

      // Set selectors for next level
      counter++;
      toggler=$$(togglerName+counter);
      content=$$(contentName+counter);
   }
});

//window.addEvent('domready', function(){
//	var menu = new Accordion($('menu'), 'ul li a.toggler', 'ul.sub', {display:false, opacity:false});								 
//});