// JavaScript Document
$(function (){
	var autoTimer;
	var autoPlay=true;
	var time=4000;
	var picChangeTime=4000;
	var picIndex=0;
	var picArray=$("#banner img");
	var picArrayLength=picArray.length-1;
	$(picArray[0]).css("display","block");
	function showPic(){
		$(picArray[picIndex]).fadeIn(picChangeTime);
	}
	function hidePic(){
		$(picArray[picIndex]).fadeOut(picChangeTime);
	}
	function autoChange(){
		if(picIndex<picArrayLength){
			hidePic();
			picIndex=picIndex+1;
			showPic();
		}else if(picIndex=picArrayLength){
			hidePic();
			picIndex=0;
			showPic();
		}
		autoTimer=setTimeout(autoChange,time);
	}
	if(autoPlay){
		autoTimer=setTimeout(autoChange,time);
	}
});