// Auto change showcase bar
var curIndex=0;
//时间间隔 单位毫秒
var timeInterval=4000;
var arr=new Array();
arr[0]="images/showcase01.jpg";
arr[1]="images/showcase02.jpg";
arr[2]="images/showcase03.jpg";
arr[3]="images/showcase04.jpg";
//arr[3]="images/showcase05.jpg";
//arr[4]="images/showcase06.jpg";
//arr[5]="images/showcase07.jpg";
//arr[6]="images/showcase08.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];
}