// JavaScript Document
var so_basic = 1;
(function($) {  // Compliant with jquery.noConflict()
	$.fn.SoSliderBasic = function(o) {
	    o = $.extend({
	        btnPrev: null,
	        btnNext: null,
	        btnPause: null,
	        btnGo: null,
	        mouseWheel: false,
	        auto: null,

	        speed: 200,
	        easing: null,

	        vertical: false,
	        circular: true,
	        visible: 3,
	        start: 0,
	        scroll: 1,

	        beforeStart: null,
	        afterEnd: null
	    }, o || {});
	    
	    var time_out;
				
		
		$(this).hover(function() {															 
			$(".so_navigation").show();			
		}, function() {
			$(".so_navigation").hide();
		});
		
		
	    return this.each(function() {                           // Returns the element collection. Chainable.

	        var running = false, animCss=o.vertical?"top":"left", sizeCss=o.vertical?"height":"width";
	        var div = $(this), ul = $("ul", div), tLi = $("li", ul), tl = tLi.size(), v = o.visible;

	        if(o.circular) {
	            ul.prepend(tLi.slice(tl-v-1+1).clone())
	              .append(tLi.slice(0,v).clone());
	            o.start += v;
	        }

	       	
			var li = $("li", ul), itemLength = li.size(), curr = o.start;
			
	        div.css("visibility", "visible");

	        li.css({overflow: "hidden", float: o.vertical ? "none" : "left"});
	        ul.css({margin: "0", padding: "0", position: "relative", "list-style-type": "none", "z-index": "1"});
	        div.css({overflow: "hidden", position: "relative", "z-index": "2", left: "0px"});

	        var liSize = o.vertical ? height(li) : width(li);   // Full li size(incl margin)-Used for animation
	        var ulSize = liSize * itemLength;                   // size of full ul(total length, not just for the visible items)
	        var divSize = liSize * v;                           // size of entire div(total length for just the visible items)
			
		   /*Get max height of li tag*/
			
			var max_height = 0;
			for (i = 0; i < li.length; i++) {
				if (max_height < li[i].offsetHeight) {
					max_height = li[i].offsetHeight;
				}				
			}	
								
	        li.css({width: li.width(), height: max_height });
	        ul.css(sizeCss, ulSize+"px").css(animCss, -(curr*liSize));
			
			if (o.vertical) {
	        	div.css(sizeCss, divSize+"px");                     // Width of the DIV. length of visible images
				$(".so_navigation").css(sizeCss, divSize+"px");
				
			}
	        if(o.btnPrev)
	            $(o.btnPrev).click(function() {
	                return go(curr-o.scroll);
	            });

	        if(o.btnNext)
	            $(o.btnNext).click(function() {
	                return go(curr+o.scroll);
	            });
	        
	        if(o.btnPause)
	            $(o.btnPause).click(function() {            	
	            	if ($(o.btnPause + ' > img').attr('src').indexOf('pause') > 0) { 
	            		o.auto = 0;
	            		clearInterval(time_out);
	            		$(o.btnPause + ' > img').attr('src', $(o.btnPause + ' > img').attr('src').replace ('pause', 'play'));
	            	} else {
	            		o.auto = 1;
	            		time_out = setInterval(function() {
	                        go(curr+o.scroll);
	                    }, o.auto+o.speed);
	            		$(o.btnPause + ' > img').attr('src', $(o.btnPause + ' > img').attr('src').replace ('play', 'pause'));
	            	}
	            	
	            });
	        
	        if(o.btnGo)
	            $.each(o.btnGo, function(i, val) {
	                $(val).click(function() {
	                    return go(o.circular ? o.visible+i : i);
	                });
	            });

	        if(o.mouseWheel && div.mousewheel)
	            div.mousewheel(function(e, d) {
	                return d>0 ? go(curr-o.scroll) : go(curr+o.scroll);
	            });

	        if(o.auto) {
	            time_out = setInterval(function() {
	                go(curr+o.scroll);
	            }, o.auto+o.speed);
	        }
	        
	        $(this).find('li').hover(
	            function () {
	                clearInterval(time_out);
	                $(this).addClass("so_hover");
	            },
	            function () {
	            	if (o.auto) {
	            		o.scroll = 1;
	                     clearInterval(time_out);
	                     time_out = setInterval(function() {
	                    	 go(curr + o.scroll);
	                     }, o.auto + o.speed);
	            	}
	            	$(this).removeClass("so_hover");
	            }
	        );
	    
	        function vis() {
	            return li.slice(curr).slice(0,v);
	        };

	        function go(to) {
	            if(!running) {

	                if(o.beforeStart)
	                    o.beforeStart.call(this, vis());

	                if(o.circular) {            // If circular we are in first or last, then goto the other end
	                    if(to<=o.start-v-1) {           // If first, then goto last
	                        ul.css(animCss, -((itemLength-(v*2))*liSize)+"px");
	                        // If "scroll" > 1, then the "to" might not be equal to the condition; it can be lesser depending on the number of elements.
	                        curr = to==o.start-v-1 ? itemLength-(v*2)-1 : itemLength-(v*2)-o.scroll;
	                    } else if(to>=itemLength-v+1) { // If last, then goto first
	                        ul.css(animCss, -( (v) * liSize ) + "px" );
	                        // If "scroll" > 1, then the "to" might not be equal to the condition; it can be greater depending on the number of elements.
	                        curr = to==itemLength-v+1 ? v+1 : v+o.scroll;
	                    } else curr = to;
	                } else {                    // If non-circular and to points to first or last, we just return.
	                    if(to<0 || to>itemLength-v) return;
	                    else curr = to;
	                }                           // If neither overrides it, the curr will still be "to" and we can proceed.

	                running = true;

	                ul.animate(
	                    animCss == "left" ? { left: -(curr*liSize) } : { top: -(curr*liSize) } , o.speed, o.easing,
	                    function() {
	                        if(o.afterEnd)
	                            o.afterEnd.call(this, vis());
	                        running = false;
	                    }
	                );
	                // Disable buttons when the carousel reaches the last/first, and enable when not
	                if(!o.circular) {
	                    $(o.btnPrev + "," + o.btnNext).removeClass("disabled");
	                    $( (curr-o.scroll<0 && o.btnPrev)
	                        ||
	                       (curr+o.scroll > itemLength-v && o.btnNext)
	                        ||
	                       []
	                     ).addClass("disabled");
	                }

	            }
	            return false;
	        };
	    });
	};

	function css(el, prop) {
	    return parseInt($.css(el[0], prop)) || 0;
	};
	function width(el) {
	    return  el[0].offsetWidth + css(el, 'marginLeft') + css(el, 'marginRight') ;
	};
	function height(el) {
	    return el[0].offsetHeight + css(el, 'marginTop') + css(el, 'marginBottom') + 16;
	};
	
	

	})(jQuery);