var lightbox_wild = Class.create();
lightbox_wild.prototype = {
  yPos : 0,
  xPos : 0,
  initialize: function(ctrl)
  {
    this.content = ctrl.href;
    Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
    ctrl.onclick = function(){return false;};
  },
  // Turn everything on - mainly the IE fixes
  activate: function()
  {
    if(navigator.appVersion.indexOf('MSIE')!=-1)
    {
      this.getScroll();
      this.prepareIE('100%', 'hidden');
      this.setScroll(0,0);
      this.hideSelects('hidden');
    }
    this.displayLightbox('block');
  },
  // Ie requires height to 100% and overflow hidden or else you can scroll down past the lightbox
  prepareIE: function(height, overflow)
  {
    bod = document.getElementsByTagName('body')[0];
    bod.style.height = height;
    bod.style.overflow = overflow;
    htm = document.getElementsByTagName('html')[0];
    htm.style.height = height;
    htm.style.overflow = overflow;
  },
  // In IE, select elements hover on top of the lightbox
  hideSelects: function(visibility)
  {
    selects = document.getElementsByTagName('select');
    for(i = 0; i < selects.length; i++) {
      selects[i].style.visibility = visibility;
    }
  },
  // Taken from lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
  getScroll: function()
  {
    if(self.pageYOffset)
      this.yPos = self.pageYOffset;
    else if(document.documentElement&&document.documentElement.scrollTop)
      this.yPos = document.documentElement.scrollTop;
    else if(document.body)
      this.yPos = document.body.scrollTop;
  },
  setScroll: function(x, y)
  {
    window.scrollTo(x, y);
  },
  displayLightbox: function(display)
  {
    $('overlay_wild').style.display = display;
    $('lightbox_wild').style.display = display;
    if(display != 'none') this.loadInfo();
  },
  // Begin Ajax request based off of the href of the clicked linked
  loadInfo: function()
  {
    var url = typeof(this.trg)!='undefined'?this.trg:this.content;
    var myAjax = new Ajax.Request(url,
      {
        method: 'post',
        parameters: '',
        onComplete: this.processInfo.bindAsEventListener(this)
      });
  },
  // Display Ajax response
  processInfo: function(response){
    info = '<div id="lbContent">' + response.responseText + '</div>';
    new Insertion.Before($('lbLoadMessage'), info)
    $('lightbox_wild').className = "done";
    this.actions();
  },
  // Search through new links within the lightbox, and attach click event
  actions: function(){
    lbActions = document.getElementsByClassName('lbAction');
    for(i = 0; i < lbActions.length; i++)
    {
      Event.observe(lbActions[i], 'click', this[lbActions[i].rel].bindAsEventListener(this), false);
      lbActions[i].onclick = function(){return false;};
    }
  },
  // Example of creating your own functionality once lightbox is initiated
  insert: function(e){
     link = Event.element(e).parentNode;
     Element.remove($('lbContent'));
     var myAjax = new Ajax.Request(link.href,
       {
         method: 'post',
         parameters: '',
         onComplete: this.processInfo.bindAsEventListener(this)
       });
  },
  // Example of creating your own functionality once lightbox is initiated
  deactivate: function()
  {
    Element.remove($('lbContent'));
    if(navigator.appVersion.indexOf('MSIE')!=-1)
    {
      this.setScroll(0,this.yPos);
      this.prepareIE('auto', 'auto');
      this.hideSelects('visible');
    }
    this.displayLightbox('none');
  }
}
// Add in markup necessary to make this work. Basically two divs:
// Overlay holds the shadow
// Lightbox is the centered square that the content is put into.
function addLightboxMarkup() {
  bod = document.getElementsByTagName('body')[0];
  overlay_wild = document.createElement('div');
  overlay_wild.id = 'overlay_wild';
  lb = document.createElement('div');
  lb.id = 'lightbox_wild';
  lb.className = 'loading';
  lb.innerHTML = '<div id="lbLoadMessage"><img src="images/lightbox/loading.gif" alt=""/></div>';
  bod.appendChild(overlay_wild);
  bod.appendChild(lb);
}