var Site = {

  slideDuration : 400,

  init : function() {
    Site.vertical($('vertical'), '.collapse', '.title', 'li', '.plus');
  },

  vertical: function(root, vpanels, vselectors, vareas, vpluses) {
    Site.panels = root.getElements(vpanels);
    Site.selectors = root.getElements(vselectors);
    Site.areas = root.getElements(vareas);
    Site.pluses = root.getElements(vpluses);
    Site.collapsibles = [];

    Site.selectors.each( function(selector, i) {
      Site.collapsibles[i] = new Fx.Slide(Site.panels[i], { 
        duration: Site.slideDuration, 
        transition: Fx.Transitions.Cubic.easeOut,
        onComplete: function(request) { 
          // var open = request.getStyle('margin-top').toInt();
          // if(open >= 0) new Fx.Scroll(window).toElement(Site.selectors[i]);
        }
      });   

      if(selector.hasClass('mouse')) {
        event.preventDefault();
        selector.addEvent('mouseenter', function(event) {
          Site.collapsibles[i].slideIn();
        });
        if(Site.areas.getLast() != null) {
          Site.areas[i].addEvent('mouseleave', function(event) {
            Site.collapsibles[i].slideOut();
          });           
        }
        else {
          selector.addEvent('mouseleave', function(event) {
            Site.collapsibles[i].slideOut();
          });           
        }
      }

      else {
        selector.addEvent('click', function(event) {      
          event.preventDefault();
          Site.collapsibles[i].toggle().chain(function() {
            Site.collapsibles.each(function(collapse, n) {
              if((collapse.open == true) && (n != i)) {
                collapse.slideIn();
              }
            });            
            if((Site.pluses[i] != null)) {
              newHTML = Site.pluses[i].innerHTML == '+' ? '–' : '+';
              Site.pluses[i].innerHTML = newHTML;
            } 
          });
        });       
      }        
      
      Site.collapsibles[i].hide();

      $('vertical').getElements('dd.open').slide('in');
      
    });
    
	
    
    if(($('collapse-all') != null) && (($('expand-all') != null))) {
      $('collapse-all').onclick = function(){
        Site.selectors.each( function(selector, i) {
          Site.collapsibles[i].hide();
          if((Site.pluses[i] != null)) {
            Site.pluses[i].innerHTML = '+';
          }          
          $('expand-all').removeClass("invisible");
          $('collapse-all').addClass("invisible");
        });
        return false;
      }   
  
      $('expand-all').onclick = function(){
        Site.selectors.each( function(selector, i) {
          Site.collapsibles[i].show();
          if((Site.pluses[i] != null)) {
            Site.pluses[i].innerHTML = '–';
          }
          $('collapse-all').removeClass("invisible");
          $('expand-all').addClass("invisible");
        });
        return false;
      }    
    }
  }
};



window.addEvent('domready', function() {
  if($('vertical') != null) {
    Site.init();
  }
});