js问题处于contentEditable=true的层里面的图片为什么不能响应键盘事件？怎么办？

[lein26]

<div id="eee">
<img src="http://www.google.com/images/logo_sm.gif" onKeyUp="alert('1')">
<input type="text" value="aa" onKeyUp="chkkey()">
</div>
<script language="javascript">
function chkkey()
{
window.status=event.keyCode
}
eee.contentEditable=true
</script>

在这里给65分提，在js版再给65分，请大家务必帮忙谢谢！

[lein26]

http://community.csdn.net/Expert/topic/4270/4270502.xml?temp=.7166101

[lein26]

<SCRIPT LANGUAGE=javascript FOR=document EVENT=onkeyup>
ku()
</SCRIPT>
<div id="eee" >
<img src="http://www.google.com/images/logo_sm.gif">asdfasdfasdfas
<input type="text" value="aa">adfasdf
</div>
<script language="javascript">
eee.contentEditable=true

document.onkeyup=kd()
function ku(){
var oControlRange = document.selection.createRange();
if (oControlRange(0).tagName.toUpperCase() == "IMG") {
alert("您在图片上按了键！")
}
}
</script>