js 插入内容

稍微改一下：<div id="a1">&nbsp;</div> 
<div id="b1" class="b1">&nbsp;</div> 
<div id="a1">&nbsp;</div> 
<div id="b1" class="b1">&nbsp;</div> 
<div id="a1">&nbsp;</div> 
<div id="b1" class="b1">&nbsp;</div> 
<div id="a1">&nbsp;</div> 
<div id="b1" class="b1">&nbsp;</div><script type="text/javascript">
function insertpics(){
  var arr = document.getElementsByTagName("div");
  for (var i = 0; i < arr.length; i ++){
    if (arr[i].id == "a1"){
      arr[i].innerHTML='<script src="info.js" language="javascript"><\/script>';
    }else if(arr[i].id == "b1"){
      arr[i].innerHTML='<img src="jsp/imgs/123.bmp" border="0">';
    }
  }
}
</script>