/*
 *
 * Copyright (c) 2006/2007 Sam Collett (http://www.texotela.co.uk)
 * Licensed under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 * 
 */

(function($){
	var URI = location.href.replace(/#.*/,'');//local url without hash

	var $localScroll = $.localScroll = function( settings ){
		$('body').localScroll( settings );
	};

	//Many of these defaults, belong to jQuery.ScrollTo, check it's demo for an example of each option.
	//@see http://www.freewebs.com/flesler/jQuery.ScrollTo/
	$localScroll.defaults = {//the defaults are public and can be overriden.
		duration:1000, //how long to animate.
		axis:'y',//which of top and left should be modified.
		event:'click',//on which event to react.
		stop:true//avoid queuing animations 
		/*
		lock:false,//ignore events if already animating
		lazy:false,//if true, links can be added later, and will still work.
		target:null, //what to scroll (selector or element). Keep it null if want to scroll the whole window.
		filter:null, //filter some anchors out of the matched elements.
		hash: false//if true, the hash of the selected link, will appear on the address bar.
		*/
	};

	//if the URL contains a hash, it will scroll to the pointed element
	$localScroll.hash = function( settings ){
		settings = $.extend( {}, $localScroll.defaults, settings );
		settings.hash = false;//can't be true
		if( location.hash )
			setTimeout(function(){ scroll( 0, location, settings ); }, 0 );//better wrapped with a setTimeout
	};

	var $scrollTo = $.scrollTo = function( target, duration, settings ){
		$scrollTo.window().scrollTo( target, duration, settings );
	};

	$scrollTo.defaults = {
		axis:'y',
		duration:1
	};

	//returns the element that needs to be animated to scroll the window
	$scrollTo.window = function(){
		return $( $.browser.safari ? 'body' : 'html' );
	};

	$.fn.extend({
		localScroll: function( settings ){
			settings = $.extend( {}, $localScroll.defaults, settings );

			return ( settings.persistent || settings.lazy ) 
					? this.bind( settings.event, function( e ){//use event delegation, more links can be added later.
						var a = $([e.target, e.target.parentNode]).filter(filter)[0];//if a valid link was clicked.
						a && scroll( e, a, settings );//do scroll.
					})
					: this.find('a,area')//bind concretely, to each matching link
							.filter( filter ).bind( settings.event, function(e){
								scroll( e, this, settings );
							}).end()
						.end();

			function filter(){//is this a link that points to an anchor and passes a possible filter ? href is checked to avoid a bug in FF.
				return !!this.href && !!this.hash && this.href.replace(this.hash,'') == URI && (!settings.filter || $(this).is( settings.filter ));
			};
		},
		scrollTo: function( target, duration, settings ){
			if( typeof duration == 'object' ){
				settings = duration;
				duration = 0;
			}
			settings = $.extend( {}, $scrollTo.defaults, settings );
			duration = duration || settings.speed || settings.duration;//speed is still recognized for backwards compatibility
			settings.queue = settings.queue && settings.axis.length > 1;//make sure the settings are given right
			if( settings.queue )
				duration /= 2;//let's keep the overall speed, the same.
			settings.offset = both( settings.offset );
			settings.over = both( settings.over );

			return this.each(function(){
				var elem = this, $elem = $(elem),
					t = target, toff, attr = {},
					win = $elem.is('html,body');
				switch( typeof t ){
					case 'number'://will pass the regex
					case 'string':
						if( /^([+-]=)?\d+(px)?$/.test(t) ){
							t = both( t );
							break;//we are done
						}
						t = $(t,this);// relative selector, no break!
					case 'object':
						if( t.is || t.style )//DOM/jQuery
							toff = (t = $(t)).offset();//get the real position of the target 
				}
				$.each( settings.axis.split(''), function( i, axis ){
					var Pos	= axis == 'x' ? 'Left' : 'Top',
						pos = Pos.toLowerCase(),
						key = 'scroll' + Pos,
						act = elem[key],
						Dim = axis == 'x' ? 'Width' : 'Height',
						dim = Dim.toLowerCase();

					if( toff ){//jQuery/DOM
						attr[key] = toff[pos] + ( win ? 0 : act - $elem.offset()[pos] );

						if( settings.margin ){//if it's a dom element, reduce the margin
							attr[key] -= parseInt(t.css('margin'+Pos)) || 0;
							attr[key] -= parseInt(t.css('border'+Pos+'Width')) || 0;
						}
						
						attr[key] += settings.offset[pos] || 0;//add/deduct the offset
						
						if( settings.over[pos] )//scroll to a fraction of its width/height
							attr[key] += t[dim]() * settings.over[pos];
					}else
						attr[key] = t[pos];//remove the unnecesary 'px'

					if( /^\d+$/.test(attr[key]) )//number or 'number'
						attr[key] = attr[key] <= 0 ? 0 : Math.min( attr[key], max(Dim) );//check the limits

					if( !i && settings.queue ){//queueing each axis is required					
						if( act != attr[key] )//don't waste time animating, if there's no need.
							animate( settings.onAfterFirst );//intermediate animation
						delete attr[key];//don't animate this axis again in the next iteration.
					}
				});			
				animate( settings.onAfter );			

				function animate( callback ){
					$elem.animate( attr, duration, settings.easing, callback && function(){
						callback.call(this, target);
					});
				};
				function max( Dim ){
					var el = win ? $.browser.opera ? document.body : document.documentElement : elem;
					return el['scroll'+Dim] - el['client'+Dim];
				};
			});
		}
    });

	function scroll( e, link, settings ){
		var id = link.hash.slice(1),
			elem = document.getElementById(id) || document.getElementsByName(id)[0];
		if ( elem ){
			e && e.preventDefault();
			var $target = $( settings.target || $.scrollTo.window() );//if none specified, then the window.

			if( settings.lock && $target.is(':animated') ||
			settings.onBefore && settings.onBefore.call(link, e, elem, $target) === false ) return;

			if( settings.stop )
				$target.queue('fx',[]).stop();//remove all its animations
			$target
				.scrollTo( elem, settings )//do scroll
				.trigger('notify.serialScroll',[elem]);//notify serialScroll about this change
			if( settings.hash )
				$target.queue(function(){
					location = link.hash;
					// make sure this function is released
					$(this).dequeue();
				});
		}
	};

	function both( val ){
		return typeof val == 'object' ? val : { top:val, left:val };
	};

})(jQuery);

/*
 font-switch jQuery Plugin
*/
$(function(){
  var currentstyle = readCookie('fontStyle');
  if (currentstyle){
  	switchFont(currentstyle);
  };
  $("a.sizeL").click(function(){
  switchFont("fontL");
  return false;
  });
  $("a.sizeM").click(function(){
  switchFont("fontM");
  return false;
  });
  $("a.sizeS").click(function(){
  switchFont("fontS");
  return false;
  });
});
function switchFont(className){
	$("#content").removeAttr("class").addClass(className);
	createCookie('fontStyle', className, 365);
};
// cookie script http://www.quirksmode.org/js/cookies.html
function createCookie(name,value,days){
	if (days){
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name){
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

$(document).ready(function(){
	$.localScroll();
});


/*
 * Facebox (for jQuery)
 * version: 1.2 (05/05/2008)
 * @requires jQuery v1.2 or later
 */
(function($) {
  $.facebox = function(data, klass) {
    $.facebox.loading()

    if (data.ajax) fillFaceboxFromAjax(data.ajax)
    else if (data.image) fillFaceboxFromImage(data.image)
    else if (data.div) fillFaceboxFromHref(data.div)
    else if ($.isFunction(data)) data.call($)
    else $.facebox.reveal(data, klass)
  }

  /*
   * Public, $.facebox methods
   */

  $.extend($.facebox, {
    settings: {
      opacity      : 0,
      overlay      : true,
      loadingImage : '../img/fb_loading.gif',
      closeImage   : '../img/fb_closelabel.gif',
      imageTypes   : [ 'png', 'jpg', 'jpeg', 'gif' ],
      faceboxHtml  : '\
    <div id="facebox" style="display:none;"> \
      <div class="popup"> \
        <table> \
          <tbody> \
            <tr> \
              <td class="tl"/><td class="b"/><td class="tr"/> \
            </tr> \
            <tr> \
              <td class="b"/> \
              <td class="body"> \
                <div class="content"> \
                </div> \
                <div class="footer"> \
                  <a href="#" class="close"> \
                    <img src="../img/fb_closelabel.gif" title="close" class="close_image" /> \
                  </a> \
                </div> \
              </td> \
              <td class="b"/> \
            </tr> \
            <tr> \
              <td class="bl"/><td class="b"/><td class="br"/> \
            </tr> \
          </tbody> \
        </table> \
      </div> \
    </div>'
    },

    loading: function() {
      init()
      if ($('#facebox .loading').length == 1) return true
      showOverlay()

      $('#facebox .content').empty()
      $('#facebox .body').children().hide().end().
        append('<div class="loading"><img src="'+$.facebox.settings.loadingImage+'"/></div>')

      $('#facebox').css({
        top:	getPageScroll()[1] + (getPageHeight() / 10),
        left:	385.5
      }).show()

      $(document).bind('keydown.facebox', function(e) {
        if (e.keyCode == 27) $.facebox.close()
        return true
      })
      $(document).trigger('loading.facebox')
    },

    reveal: function(data, klass) {
      $(document).trigger('beforeReveal.facebox')
      if (klass) $('#facebox .content').addClass(klass)
      $('#facebox .content').append(data)
      $('#facebox .loading').remove()
      $('#facebox .body').children().fadeIn('normal')
      $('#facebox').css('left', $(window).width() / 2 - ($('#facebox table').width() / 2))
      $(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
    },

    close: function() {
      $(document).trigger('close.facebox')
      return false
    }
  })

  /*
   * Public, $.fn methods
   */

  $.fn.facebox = function(settings) {
    init(settings)

    function clickHandler() {
      $.facebox.loading(true)

      // support for rel="facebox.inline_popup" syntax, to add a class
      // also supports deprecated "facebox[.inline_popup]" syntax
      var klass = this.rel.match(/facebox\[?\.(\w+)\]?/)
      if (klass) klass = klass[1]

      fillFaceboxFromHref(this.href, klass)
      return false
    }

    return this.click(clickHandler)
  }

  /*
   * Private methods
   */

  // called one time to setup facebox on this page
  function init(settings) {
    if ($.facebox.settings.inited) return true
    else $.facebox.settings.inited = true

    $(document).trigger('init.facebox')
    makeCompatible()

    var imageTypes = $.facebox.settings.imageTypes.join('|')
    $.facebox.settings.imageTypesRegexp = new RegExp('\.' + imageTypes + '$', 'i')

    if (settings) $.extend($.facebox.settings, settings)
    $('body').append($.facebox.settings.faceboxHtml)

    var preload = [ new Image(), new Image() ]
    preload[0].src = $.facebox.settings.closeImage
    preload[1].src = $.facebox.settings.loadingImage

    $('#facebox').find('.b:first, .bl, .br, .tl, .tr').each(function() {
      preload.push(new Image())
      preload.slice(-1).src = $(this).css('background-image').replace(/url\((.+)\)/, '$1')
    })

    $('#facebox .close').click($.facebox.close)
    $('#facebox .close_image').attr('src', $.facebox.settings.closeImage)
  }
  
  // getPageScroll() by quirksmode.com
  function getPageScroll() {
    var xScroll, yScroll;
    if (self.pageYOffset) {
      yScroll = self.pageYOffset;
      xScroll = self.pageXOffset;
    } else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
      yScroll = document.documentElement.scrollTop;
      xScroll = document.documentElement.scrollLeft;
    } else if (document.body) {// all other Explorers
      yScroll = document.body.scrollTop;
      xScroll = document.body.scrollLeft;	
    }
    return new Array(xScroll,yScroll) 
  }

  // Adapted from getPageSize() by quirksmode.com
  function getPageHeight() {
    var windowHeight
    if (self.innerHeight) {	// all except Explorer
      windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
      windowHeight = document.documentElement.clientHeight;
    } else if (document.body) { // other Explorers
      windowHeight = document.body.clientHeight;
    }	
    return windowHeight
  }

  // Backwards compatibility
  function makeCompatible() {
    var $s = $.facebox.settings

    $s.loadingImage = $s.loading_image || $s.loadingImage
    $s.closeImage = $s.close_image || $s.closeImage
    $s.imageTypes = $s.image_types || $s.imageTypes
    $s.faceboxHtml = $s.facebox_html || $s.faceboxHtml
  }

  // Figures out what you want to display and displays it
  // formats are:
  //     div: #id
  //   image: blah.extension
  //    ajax: anything else
  function fillFaceboxFromHref(href, klass) {
    // div
    if (href.match(/#/)) {
      var url    = window.location.href.split('#')[0]
      var target = href.replace(url,'')
      $.facebox.reveal($(target).clone().show(), klass)

    // image
    } else if (href.match($.facebox.settings.imageTypesRegexp)) {
      fillFaceboxFromImage(href, klass)
    // ajax
    } else {
      fillFaceboxFromAjax(href, klass)
    }
  }

  function fillFaceboxFromImage(href, klass) {
    var image = new Image()
    image.onload = function() {
      $.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass)
    }
    image.src = href
  }

  function fillFaceboxFromAjax(href, klass) {
    $.get(href, function(data) { $.facebox.reveal(data, klass) })
  }

  function skipOverlay() {
    return $.facebox.settings.overlay == false || $.facebox.settings.opacity === null 
  }

  function showOverlay() {
    if (skipOverlay()) return

    if ($('facebox_overlay').length == 0) 
      $("body").append('<div id="facebox_overlay" class="facebox_hide"></div>')

    $('#facebox_overlay').hide().addClass("facebox_overlayBG")
      .css('opacity', $.facebox.settings.opacity)
      .click(function() { $(document).trigger('close.facebox') })
      .fadeIn(200)
    return false
  }

  function hideOverlay() {
    if (skipOverlay()) return

    $('#facebox_overlay').fadeOut(200, function(){
      $("#facebox_overlay").removeClass("facebox_overlayBG")
      $("#facebox_overlay").addClass("facebox_hide") 
      $("#facebox_overlay").remove()
    })
    
    return false
  }

  /*
   * Bindings
   */

  $(document).bind('close.facebox', function() {
    $(document).unbind('keydown.facebox')
    $('#facebox').fadeOut(function() {
      $('#facebox .content').removeClass().addClass('content')
      hideOverlay()
      $('#facebox .loading').remove()
    })
  })

})(jQuery);