求助：想在图片底部显示文字,代码应该怎么改？

have

<div id="div1" align="center">
<div>
<script language ="javascript">
var curIndex=0;
//时间间隔(单位毫秒)，每秒钟显示一张，数组共有5张图片放在Photos文件夹下。
var timeInterval=6000;
var arr=new Array();
arr[0]="images/10.jpg";
arr[1]="images/11.jpg";
arr[2]="images/12.jpg";
arr[3]="images/13.jpg";
arr[4]="images/14.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];
}
</script>
<img id="obj" src ="images/10.jpg" width="1000" height="400" border ="0">
</div>
</div>

have

help to me