$(funtion(){
var curIndex=0;
//時間間隔(單位毫秒),每秒鐘顯示一張,數組共有5張圖片放在Photos文件夾下。
var timeInterval=1000;
var arr=new Array();
arr[0]="images/background/b1.jpg";
arr[1]="images/background/b2.jpg";
arr[2]="images/background/b3.jpg";
arr[3]="images/background/b4.jpg";
setInterval(changeImg,timeInterval);
function changeImg()
{
var obj=document.getElementById("obj");
if (curIndex==arr.length-1)
{
curIndex=0;
}
else
{
curIndex+=1;
}
obj.src=arr[curIndex];
}
var urlStr = window.location.href;
if(urlStr.indexOf("?")>=0){
var parm = urlStr.split("?");
alert(parm[1]);
}
});
<img src="images/background/b2.jpg" id="obj" alt="image1" style="display:none;"/>