/*
 * 	easyaccordion 0.1 - jquery plugin
 *	written by andrea cima serniotti	
 *	http://www.madeincima.eu
 *
 *	copyright (c) 2010 andrea cima serniotti (http://www.madeincima.eu)
 *	dual licensed under the mit (mit-license.txt) and gpl (gpl-license.txt) licenses.
 *	built for jquery library http://jquery.com
 */
 
(function(jquery) {
	jquery.fn.easyaccordion = function(options) {
	
	var defaults = {			
		slidenum: true,
		autostart: false,
		slideinterval: 3000
	};
			
	this.each(function() {
		
		var settings = jquery.extend(defaults, options);		
		jquery(this).find('dl').addclass('easy-accordion');
		
		
		// -------- set the variables ------------------------------------------------------------------------------
		
		jquery.fn.setvariables = function() {
			dlwidth = jquery(this).width();
			dlheight = jquery(this).height();
			dtwidth = jquery(this).find('dt').outerheight();
			if (jquery.browser.msie){ dtwidth = $(this).find('dt').outerwidth();}
			dtheight = dlheight - (jquery(this).find('dt').outerwidth()-jquery(this).find('dt').width());
			slidetotal = jquery(this).find('dt').size();
			ddwidth = dlwidth - (dtwidth*slidetotal) - (jquery(this).find('dd').outerwidth(true)-jquery(this).find('dd').width());
			ddheight = dlheight - (jquery(this).find('dd').outerheight(true)-jquery(this).find('dd').height());
		};
		jquery(this).setvariables();
	
		
		// -------- fix some weird cross-browser issues due to the css rotation -------------------------------------

		if (jquery.browser.safari){ var dttop = (dlheight-dtwidth)/2; var dtoffset = -dttop;  /* safari and chrome */ }
		if (jquery.browser.mozilla){ var dttop = dlheight - 20; var dtoffset = - 20; /* ff */ }
		if (jquery.browser.msie){ var dttop = 0; var dtoffset = 0; /* ie */ }
		
		
		// -------- getting things ready ------------------------------------------------------------------------------
		
		var f = 1;
		jquery(this).find('dt').each(function(){
			jquery(this).css({'width':dtheight,'top':dttop,'margin-left':dtoffset});	
			if(settings.slidenum == true){
				jquery('<span class="slide-number">'+0+f+'</span>').appendto(this);
				if(jquery.browser.msie){	
					var slidenumleft = parseint(jquery(this).find('.slide-number').css('left')) - 14;
					jquery(this).find('.slide-number').css({'left': slidenumleft})
					if(jquery.browser.version == 6.0 || jquery.browser.version == 7.0){
						jquery(this).find('.slide-number').css({'bottom':'auto'});
					}
					if(jquery.browser.version == 8.0){
					var slidenumtop = jquery(this).find('.slide-number').css('bottom');
					var slidenumtopval = parseint(slidenumtop) + parseint(jquery(this).css('padding-top'))  - 12; 
					jquery(this).find('.slide-number').css({'bottom': slidenumtopval}); 
					}
				} else {
					var slidenumtop = jquery(this).find('.slide-number').css('bottom');
					var slidenumtopval = parseint(slidenumtop) + parseint(jquery(this).css('padding-top')); 
					jquery(this).find('.slide-number').css({'bottom': slidenumtopval}); 
				}
			}
			f = f + 1;
		});
		
		if(jquery(this).find('.active').size()) { 
			jquery(this).find('.active').next('dd').addclass('active');
		} else {
			jquery(this).find('dt:first').addclass('active').next('dd').addclass('active');
		}
		
		jquery(this).find('dt:first').css({'left':'0'}).next().css({'left':dtwidth});
		jquery(this).find('dd').css({'width':ddwidth,'height':ddheight});	

		
		// -------- functions ------------------------------------------------------------------------------
		
		jquery.fn.findactiveslide = function() {
				var i = 1;
				this.find('dt').each(function(){
				if(jquery(this).hasclass('active')){
					activeid = i; // active slide
				} else if (jquery(this).hasclass('no-more-active')){
					nomoreactiveid = i; // no more active slide
				}
				i = i + 1;
			});
		};
			
		jquery.fn.calculateslidepos = function() {
			var u = 2;
			jquery(this).find('dt').not(':first').each(function(){	
				var activedtpos = dtwidth*activeid;
				if(u <= activeid){
					var leftdtpos = dtwidth*(u-1);
					jquery(this).animate({'left': leftdtpos});
					if(u < activeid){ // if the item sits to the left of the active element
						jquery(this).next().css({'left':leftdtpos+dtwidth});	
					} else{ // if the item is the active one
						jquery(this).next().animate({'left':activedtpos});
					}
				} else {
					var rightdtpos = dlwidth-(dtwidth*(slidetotal-u+1));
					jquery(this).animate({'left': rightdtpos});
					var rightddpos = rightdtpos+dtwidth;
					jquery(this).next().animate({'left':rightddpos});	
				}
				u = u+ 1;
			});
			settimeout( function() {
				jquery('.easy-accordion').find('dd').not('.active').each(function(){ 
					jquery(this).css({'display':'none'});
				});
			}, 400);
			
		};
	
		jquery.fn.activateslide = function() {
			this.parent('dl').setvariables();	
			this.parent('dl').find('dd').css({'display':'block'});
			this.parent('dl').find('dd.plus').removeclass('plus');
			this.parent('dl').find('.no-more-active').removeclass('no-more-active');
			this.parent('dl').find('.active').removeclass('active').addclass('no-more-active');
			this.addclass('active').next().addclass('active');	
			this.parent('dl').findactiveslide();
			if(activeid < nomoreactiveid){
				this.parent('dl').find('dd.no-more-active').addclass('plus');
			}
			this.parent('dl').calculateslidepos();	
		};
	
		jquery.fn.rotateslides = function(slideinterval, timerinstance) {
			var accordianinstance = jquery(this);
			timerinstance.value = settimeout(function(){accordianinstance.rotateslides(slideinterval, timerinstance);}, slideinterval);
			jquery(this).findactiveslide();
			var totalslides = jquery(this).find('dt').size();
			var activeslide = activeid;
			var newslide = activeslide + 1;
			if (newslide > totalslides) newslide = 1;
			jquery(this).find('dt:eq(' + (newslide-1) + ')').activateslide(); // activate the new slide
		}


		// -------- let's do it! ------------------------------------------------------------------------------
		
		function trackerobject() {this.value = null}
		var timerinstance = new trackerobject();
		
		jquery(this).findactiveslide();
		jquery(this).calculateslidepos();
		
		if (settings.autostart == true){
			var accordianinstance = jquery(this);
			var interval = parseint(settings.slideinterval);
			timerinstance.value = settimeout(function(){
				accordianinstance.rotateslides(interval, timerinstance);
				}, interval);
		} 

		jquery(this).find('dt').not('active').click(function(){		
			jquery(this).activateslide();
			cleartimeout(timerinstance.value);
		});	
				
		if (!(jquery.browser.msie && jquery.browser.version == 6.0)){ 
			jquery('dt').hover(function(){
				jquery(this).addclass('hover');
			}, function(){
				jquery(this).removeclass('hover');
			});
		}
	});
	};
})(jquery);