js动态往表格的td中添加图片并注册事件

html:

<table>
    <tr>
    <td id="a1"></td>
    </tr>
</table>

JS:

<script type="text/javascript"> 
function onloadEvent(){ 
var _td = document.getElementById("a1"); 
var _img = document.createElement("img"); 
_img.setAttribute("id", "floatImage"); 
_img.setAttribute("src", "icon.png"); 
_img.setAttribute("onclick", "clickImage()"); 
_img.onclick = function(){ //点击时响应事件 
alert("点击"); 
//window.location = "http://baidu.com"; 跳转url 
}; 
_td.appendChild(_img); 
} 
</script>