/**
* carousel - jQuery plugin to navigate images/any content in a carousel style widget.
* @requires and works only on  jQuery v1.1.3.1 or above
*
* Original source
* http://gmarwaha.com/jquery/jcarousellite/
*
*
* This File has been  modified for custom needs
*  Load the image only if it is being displayed
*  Hightlight the current Index image
* Added new, start index counter for image
* girethde
*/
var previtem;
(function($) {                                          // Compliant with jquery.noConflict()
$.fn.carousel = function(o) {
o = $.extend({
	btnPrev: null,
	btnNext: null,
	btnGo: null,
	mouseWheel: false,
	auto: null,
	liparam:null,
	speed: 200,
	easing: null,
	vertical: false,
	circular: true,
	visible: 3,
	start: 0,
	scroll: 1,
	beforeStart: null,
	afterEnd: null
}, o || {});

var div = $(this), ul = $("ul", div);

ul.html("");
for(c=0;c<o.liparam.length;c++){
if(c < o.visible){
ul.html(ul.html()+"<li id='"+o.btnPrev+"_"+c+"' style='width:"+o.liwidth+";height:"+o.liheight+";'>"+o.liparam[c]+"</li>");
}
else{
ul.html(ul.html()+"<li id='"+o.btnPrev+"_"+c+"' ></li>");
}
}
//ul.html("<li id='li_0' style='width:100px;height:100px'>xgfdgdfgdfg</li><li id='li_1'  style='width:100px;height:100px'>1</li><li  style='width:100px;height:100px' id='li_2'  style='width:100px;height:100px' ></li><li id='li_3'  style='width:100px;height:100px'  ></li><li id='li_4'  style='width:100px;height:100px'></li><li id='li_5'  style='width:100px;height:100px'></li><li id='li_6'  style='width:100px;height:100px'></li><li id='li_7'  style='width:100px;height:100px'></li>");

return this.each(function() {                           // Returns the element collection. Chainable.

	var running = false, animCss=o.vertical?"top":"right", 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.html("idsjgkldsjgkljdsgjdskljgkdsjgkjdskjgdskjghai");




	li.css({padding: "0", overflow: "hidden", float: o.vertical ? "none" : "right"});

	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);
	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)

	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)

	li.css({width: li.width(), height: li.height()});
	ul.css(sizeCss, ulSize+"px").css(animCss, -(curr*liSize));

	div.css(sizeCss, divSize+"px");                     // Width of the DIV. length of visible images

	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.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)
		setInterval(function() {
			go(curr+o.scroll);
		}, o.auto+o.speed);

	function vis() {
		return li.slice(curr).slice(0,v);
	};
	 if(o.doEnd){
	  return go(o.liparam.length - o.visible);
	 }
	 else{
	 return go(o.start);
	 }
	function go(to) {
	  if(to>=0 && to<=itemLength-v && o.btnPrefix){
		  if(previtem !=""){

			$("#"+o.btnPrefix+previtem).removeClass("active");

		  }
		  previtem = to+1;
		  $("#"+o.btnPrefix+(to+1)).addClass("active");
	 }
	 if(to>0 && to<itemLength-v+1){
	  for(i=to-(v-1);i<to+v;i++){
		if(i > 0){
		  document.getElementById(o.btnPrev+"_"+i).innerHTML= o.liparam[i];
		}
	  }
	 }
	 else{
	  if(to>itemLength-v+1){
		$(o.btnNext).addClass("disabled");
	  }
	  else if(to<0){
		$(o.btnPrev).addClass("disabled");
	  }
	 }
		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 == "right" ? { right: -(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;
	};
	$(o.btnPrev + "," + o.btnNext).removeClass("disabled");
	$( (curr-o.scroll<0 && o.btnPrev)
		||
	   (curr+o.scroll > itemLength-v && o.btnNext)
		||
	   []
	 ).addClass("disabled");

});


};

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');
};

})(jQuery);
// JavaScript Document