var favicon = {

defaultPause: 2000,
change: function(iconURL, optionalDocTitle) {
  clearTimeout(this.loopTimer);
  if (optionalDocTitle) {
    document.title = optionalDocTitle;
  }
  this.addLink(iconURL, true);
},

animate: function(iconSequence, optionalDelay) {
  this.preloadIcons(iconSequence);
  this.iconSequence = iconSequence;
  this.sequencePause = (optionalDelay) ?  optionalDelay : this.defaultPause;
  favicon.index = 0;
  favicon.change(iconSequence[0]);
  this.loopTimer = setInterval(function() {
    favicon.index = (favicon.index+1) % favicon.iconSequence.length;
    favicon.addLink(favicon.iconSequence[favicon.index], false);
  }, favicon.sequencePause);
},

// -- "PRIVATE" ---------------------------------------------------------------

loopTimer: null,

preloadIcons: function(iconSequence) {
  var dummyImageForPreloading = document.createElement("img");
  for (var i=0; i<iconSequence.length; i++) {
    dummyImageForPreloading.src = iconSequence[i];
  }
},

addLink: function(iconURL) {
  var link = document.createElement("link");
  link.type = "image/x-icon";
  link.rel = "shortcut icon";
  link.href = iconURL;
  this.removeLinkIfExists();
  this.docHead.appendChild(link);
},

removeLinkIfExists: function() {
  var links = this.docHead.getElementsByTagName("link");
  for (var i=0; i<links.length; i++) {
    var link = links[i];
    if (link.type=="image/x-icon" && link.rel=="shortcut icon") {
      this.docHead.removeChild(link);
      return; // Assuming only one match at most.
    }
  }
},

docHead:document.getElementsByTagName("head")[0]
}



var recentHash = window.location.hash;

function loadContent(){
	
	favicon.change('http://2peaches.de/theme/2peaches/img/fav.ico');
	
    new Request.HTML({
        url: '/inhalt/' + recentHash.substr(2),
        update: $('contentMain'),
        evalScripts: true
      }).send();
	
	$$('.navItem').each(function(el){
		el.removeClass('navOverlayActive');
	});
	
	var menuBtn = $('nav' + recentHash.substr(2));
	if(menuBtn){
		menuBtn.addClass('navOverlayActive');
	}
	
}


function pollHash() {
	
	  if (window.location.hash==recentHash) {
	    return;
	  }
	  
	  recentHash = window.location.hash;
	  loadContent();
}

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

	setInterval(pollHash, 1000);
	loadContent();
	
	$$('.navi').addEvent('mousedown', function(event){ 
		recentHash = '#!' + this.get('text');
		location.hash = '!' + this.get('text');
		loadContent();
	});
	
	$('headerLogo').addEvent('mousedown', function(event){
		recentHash = '#!Home';
		location.hash = '!Home';
		loadContent();
	});
	
});