/**
 * Coin Slider - Unique jQuery Image Slider
 * @version: 1.0 - (2010/04/04)
 * @requires jQuery v1.2.2 or later 
 * @author Ivan Lazarevic
 * Examples and documentation at: http://workshop.rs/projects/coin-slider/
 
 * Licensed under MIT licence:
 *   http://www.opensource.org/licenses/mit-license.php
**/

// Modified by WurzerD

(function($){
	var params = new Array;
	var order = new Array;
	var images = new Array;
	var links = new Array;
	var linksTarget = new Array;
	var titles = new Array;
	var interval = new Array;
	var imagePos = new Array;
	var appInterval = new Array;
	var squarePos = new Array;
	var reverse = new Array;
	$.fn.coinslider = $.fn.CoinSlider = function(options){
	
		init=function(el){
			order[el.id]=new Array();
			images[el.id]=new Array();
			links[el.id]=new Array();
			linksTarget[el.id]=new Array();
			titles[el.id]=new Array();
			var randomnumber = Math.floor(Math.random()*6)
			imagePos[el.id]=randomnumber; //0; Changed by WurzerD
			squarePos[el.id]=0;
			reverse[el.id]=1;
			params[el.id]=$.extend({},$.fn.coinslider.defaults,options);
			$.each($('#'+el.id+' img'), function(i,item){
				images[el.id][i] = $(item).attr('src');
				links[el.id][i] = $(item).parent().is('a')?$(item).parent().attr('href'):'';
				linksTarget[el.id][i] = $(item).parent().is('a')?$(item).parent().attr('target'):'';
				titles[el.id][i] = $(item).next().is('span')?$(item).next().html():'';
				$(item).hide();
				$(item).next().hide();
			});
			$(el).css(
				{'background-image':'url('+images[el.id][0]+')', //el.id][0]+')',
				 'width':params[el.id].width,
				 'height':params[el.id].height,
				 'position':'relative',
				 'background-position':'top left'}
			).wrap("<div class='coin-slider' id='coin-slider-"+el.id+"' />");
			$('#'+el.id).append("<div class='cs-title' id='cs-title-"+el.id+"' style='position: absolute; bottom:0; left: 0; z-index: 1000;'></div>");
			$.setFields(el);
			if(params[el.id].navigation)
			$.setNavigation(el);
			$.transition(el, randomnumber); //0); Changed by WurzerD
			$.transitionCall(el);
		}
		
		$.setFields = function(el){
			tWidth=sWidth=parseInt(params[el.id].width/params[el.id].spw);
			tHeight=sHeight=parseInt(params[el.id].height/params[el.id].sph);
			counter=sLeft=sTop=0;
			tgapx=gapx=params[el.id].width-params[el.id].spw*sWidth;
			tgapy=gapy=params[el.id].height-params[el.id].sph*sHeight;
			for(i=1;i<=params[el.id].sph;i++){
				gapx=tgapx;
				if(gapy>0){gapy--;sHeight=tHeight+1;}
				else{sHeight=tHeight;}
				for(j=1;j<=params[el.id].spw;j++){if(gapx>0){gapx--;sWidth=tWidth+1;}else{sWidth=tWidth;}
				order[el.id][counter]=i+''+j;
				counter++;
				if(params[el.id].links)
					$('#'+el.id).append("<a href='"+links[el.id][0]+"' class='cs-"+el.id+"' id='cs-"+el.id+i+j+"' style='width:"+sWidth+"px; height:"+sHeight+"px; float: left; position: absolute;'></a>");
				else
					$('#'+el.id).append("<div class='cs-"+el.id+"' id='cs-"+el.id+i+j+"' style='width:"+sWidth+"px; height:"+sHeight+"px; float: left; position: absolute;'></div>");
					$("#cs-"+el.id+i+j).css({'background-position':-sLeft+'px '+(-sTop+'px'),'left':sLeft,'top':sTop});sLeft+=sWidth;}
				sTop+=sHeight;
				sLeft=0;
			}
			$('.cs-'+el.id).mouseover(function(){$('#cs-navigation-'+el.id).show();});$('.cs-'+el.id).mouseout(function(){$('#cs-navigation-'+el.id).hide();});$('#cs-title-'+el.id).mouseover(function(){$('#cs-navigation-'+el.id).show();});$('#cs-title-'+el.id).mouseout(function(){$('#cs-navigation-'+el.id).hide();});if(params[el.id].hoverPause){$('.cs-'+el.id).mouseover(function(){params[el.id].pause=true;});$('.cs-'+el.id).mouseout(function(){params[el.id].pause=false;});$('#cs-title-'+el.id).mouseover(function(){params[el.id].pause=true;});$('#cs-title-'+el.id).mouseout(function(){params[el.id].pause=false;});}};$.transitionCall=function(el){clearInterval(interval[el.id]);delay=params[el.id].delay+params[el.id].spw*params[el.id].sph*params[el.id].sDelay;interval[el.id]=setInterval(function(){$.transition(el)},delay);}
			
			$.transition = function(el,direction){
				if(params[el.id].pause==true)return;
				$.effect(el);
				squarePos[el.id]=0;
				appInterval[el.id]=setInterval(
					function(){$.appereance(el,order[el.id][squarePos[el.id]])} , params[el.id].sDelay);
					$(el).css({'background-image':'url('+images[el.id][imagePos[el.id]]+')'});
					//alert(typeof(direction));
					if (typeof(direction)=="undefined")			
						imagePos[el.id]++;
					else
						if(direction=='prev')
							imagePos[el.id]--;
						else
							imagePos[el.id] = direction;
					if(imagePos[el.id]==images[el.id].length){imagePos[el.id]=0;}
					if(imagePos[el.id]==-1){imagePos[el.id]=images[el.id].length-1;}
		$('.cs-button-'+el.id).removeClass('cs-active');$('#cs-button-'+el.id+"-"+(imagePos[el.id]+1)).addClass('cs-active');if(titles[el.id][imagePos[el.id]]){$('#cs-title-'+el.id).css({'opacity':0}).animate({'opacity':params[el.id].opacity},params[el.id].titleSpeed);$('#cs-title-'+el.id).html(titles[el.id][imagePos[el.id]]);}else{$('#cs-title-'+el.id).css('opacity',0);}};$.appereance=function(el,sid){$('.cs-'+el.id).attr('href',links[el.id][imagePos[el.id]]).attr('target',linksTarget[el.id][imagePos[el.id]]);if(squarePos[el.id]==params[el.id].spw*params[el.id].sph){clearInterval(appInterval[el.id]);return;}
		$('#cs-'+el.id+sid).css({opacity:0,'background-image':'url('+images[el.id][imagePos[el.id]]+')'});$('#cs-'+el.id+sid).animate({opacity:1},300);squarePos[el.id]++;};$.setNavigation=function(el){$(el).append("<div id='cs-navigation-"+el.id+"'></div>");$('#cs-navigation-'+el.id).hide();$('#cs-navigation-'+el.id).append("<a href='#' id='cs-prev-"+el.id+"' class='cs-prev'>prev</a>");$('#cs-navigation-'+el.id).append("<a href='#' id='cs-next-"+el.id+"' class='cs-next'>next</a>");$('#cs-prev-'+el.id).css({'position':'absolute','top':params[el.id].height/2-15,'left':0,'z-index':1001,'line-height':'30px','opacity':params[el.id].opacity}).click(function(e){e.preventDefault();$.transition(el,'prev');$.transitionCall(el);}).mouseover(function(){$('#cs-navigation-'+el.id).show()});$('#cs-next-'+el.id).css({'position':'absolute','top':params[el.id].height/2-15,'right':0,'z-index':1001,'line-height':'30px','opacity':params[el.id].opacity}).click(function(e){e.preventDefault();$.transition(el);$.transitionCall(el);}).mouseover(function(){$('#cs-navigation-'+el.id).show()});$("<div id='cs-buttons-"+el.id+"' class='cs-buttons'></div>").appendTo($('#coin-slider-'+el.id));for(k=1;k<images[el.id].length+1;k++){$('#cs-buttons-'+el.id).append("<a href='#' class='cs-button-"+el.id+"' id='cs-button-"+el.id+"-"+k+"'>"+k+"</a>");}
		$.each($('.cs-button-'+el.id),function(i,item){$(item).click(function(e){
		$('.cs-button-'+el.id).removeClass('cs-active');
		$(this).addClass('cs-active');
		e.preventDefault();
		$.transition(el, i);
		$.transitionCall(el);
		})});$('#cs-navigation-'+el.id+' a').mouseout(function(){$('#cs-navigation-'+el.id).hide();params[el.id].pause=false;});$("#cs-buttons-"+el.id).css({'left':'50%','margin-left':-images[el.id].length*15/2-5,'position':'relative'});}
		$.effect=function(el){effA=['random','swirl','rain','straight'];if(params[el.id].effect=='')
		eff=effA[Math.floor(Math.random()*(effA.length))];else
		eff=params[el.id].effect;order[el.id]=new Array();if(eff=='random'){counter=0;for(i=1;i<=params[el.id].sph;i++){for(j=1;j<=params[el.id].spw;j++){order[el.id][counter]=i+''+j;counter++;}}
		$.random(order[el.id]);}
		if(eff=='rain'){$.rain(el);}
		if(eff=='swirl')
		$.swirl(el);if(eff=='straight')
		$.straight(el);reverse[el.id]*=-1;if(reverse[el.id]>0){order[el.id].reverse();}}
		$.random=function(arr){var i=arr.length;if(i==0)return false;while(--i){var j=Math.floor(Math.random()*(i+1));var tempi=arr[i];var tempj=arr[j];arr[i]=tempj;arr[j]=tempi;}}
		$.swirl=function(el){var n=params[el.id].sph;var m=params[el.id].spw;var x=1;var y=1;var going=0;var num=0;var c=0;var dowhile=true;while(dowhile){num=(going==0||going==2)?m:n;for(i=1;i<=num;i++){order[el.id][c]=x+''+y;c++;if(i!=num){switch(going){case 0:y++;break;case 1:x++;break;case 2:y--;break;case 3:x--;break;}}}
		going=(going+1)%4;switch(going){case 0:m--;y++;break;case 1:n--;x++;break;case 2:m--;y--;break;case 3:n--;x--;break;}
		check=$.max(n,m)-$.min(n,m);if(m<=check&&n<=check)
		dowhile=false;}}
		$.rain=function(el){var n=params[el.id].sph;var m=params[el.id].spw;var c=0;var to=to2=from=1;var dowhile=true;while(dowhile){for(i=from;i<=to;i++){order[el.id][c]=i+''+parseInt(to2-i+1);c++;}
		to2++;if(to<n&&to2<m&&n<m){to++;}
		if(to<n&&n>=m){to++;}
		if(to2>m){from++;}
		if(from>to)dowhile=false;}}
		$.straight=function(el){counter=0;for(i=1;i<=params[el.id].sph;i++){for(j=1;j<=params[el.id].spw;j++){order[el.id][counter]=i+''+j;counter++;}}}
		$.min=function(n,m){if(n>m)return m;else return n;}
		$.max=function(n,m){if(n<m)return m;else return n;}
		this.each(
			function(){init(this);}
		);
	};
	$.fn.coinslider.defaults = {width:565, height:290, spw:7, sph:5, delay:3000, sDelay:30, opacity:0.7, titleSpeed:500, effect:'', navigation:false, links:false, hoverPause:true};
})(jQuery);