(function ($) {
$.fn.soChange = function (o) {
    return  new $sG(this, o);
			//alert('do');
    };

	var settings = {
		thumbObj:null,
		botPrev:null,
		botNext:null,
		thumbNowClass:'now',
		thumbOverEvent:true,
		slideTime:1000,
		autoChange:true,
		clickFalse:true,
		overStop:true,
		changeTime:5000,
		delayTime:300
	};

 $.soChangeLong = function(e, o) {
    this.options = $.extend({}, settings, o || {});
	var _self = $(e);
	var set = this.options;
	var thumbObj;
	var size = _self.size();
	var nowIndex = 0;
	var index;
	var startRun;
	var delayRun;


	_self.hide();
	_self.eq(0).show();


function fadeAB () {
	if (nowIndex != index) {
		if (set.thumbObj!=null) {
		$(set.thumbObj).removeClass(set.thumbNowClass).eq(index).addClass(set.thumbNowClass);}
		if (set.slideTime <= 0) {
			_self.eq(nowIndex).hide();
			_self.eq(index).show();	
		}else{
			_self.eq(nowIndex).fadeOut(set.slideTime);
			_self.eq(index).fadeIn(set.slideTime);
		}
		nowIndex = index;
		if (set.autoChange==true) {
		clearInterval(startRun);
		startRun = setInterval(runNext,set.changeTime);}
		}
}



function runNext() {
	index =  (nowIndex+1)%size;
	fadeAB();
}


	if (set.thumbObj!=null) {
	thumbObj = $(set.thumbObj);


	thumbObj.removeClass(set.thumbNowClass).eq(0).addClass(set.thumbNowClass);

		thumbObj.click(function () {
			index = thumbObj.index($(this));
			fadeAB();
			if (set.clickFalse == true) {
				return false;
			}
		});
		if (set.thumbOverEvent == true) {
		thumbObj.mouseenter(function () {
			index = thumbObj.index($(this));
			delayRun = setTimeout(fadeAB,set.delayTime);
		});
		thumbObj.mouseleave(function () {
			clearTimeout(delayRun);
		});
		}
	}


	if (set.botNext!=null) {
		$(set.botNext).click(function () {
			if(_self.queue().length<1){
			runNext();}
			return false;
		});
	}


	if (set.botPrev!=null) {
		$(set.botPrev).click(function () {
			if(_self.queue().length<1){
			index = (nowIndex+size-1)%size;
			fadeAB();}
			return false;
	});
	}


	if (set.autoChange==true) {
	startRun = setInterval(runNext,set.changeTime);
	if (set.overStop == true) {
		_self.mouseenter(function () {
			clearInterval(startRun);
			
		});
		_self.mouseleave(function () {
			startRun = setInterval(runNext,set.changeTime);
		});
		}
	}

}

var $sG = $.soChangeLong;

})(jQuery);