<!DOCTYPE html>
<html>
<head>
<title> iRock-The Virtual Pet Rock</title>
<script type="text/javascript">
function touchRock() {
var userName=prompt("what*s your name?"）;
if(userName) {
alert("It is good to meet you " +userName+ ".");
document.getElementByID("rockImg").src="http://read.pudn.com/downloads166/sourcecode/windows/763648/HeadFirstJavaScriptCode/chapter01/irock/rock_happy.png";
}
}
</script>
</head>
<body onload="alert(*hello*);">
<div style="margin-top:0;text-align:center">
<img id="rockImg" src="http://jsdo-it-static-contents.s3.amazonaws.com/images/capture/n/g/A/ngAJ.jpg" alt="iRock" style="cursor:pointer" onclick="touchRock()"/>
</div>
</body>
</html>
<html>
<head>
<title> iRock-The Virtual Pet Rock</title>
<script type="text/javascript">
function touchRock() {
var userName=prompt("what*s your name?"）;
if(userName) {
alert("It is good to meet you " +userName+ ".");
document.getElementByID("rockImg").src="http://read.pudn.com/downloads166/sourcecode/windows/763648/HeadFirstJavaScriptCode/chapter01/irock/rock_happy.png";
}
}
</script>
</head>
<body onload="alert(*hello*);">
<div style="margin-top:0;text-align:center">
<img id="rockImg" src="http://jsdo-it-static-contents.s3.amazonaws.com/images/capture/n/g/A/ngAJ.jpg" alt="iRock" style="cursor:pointer" onclick="touchRock()"/>
</div>
</body>
</html>
意思是点击这图片，换成另一个图片，怎么点击没反应呢
I谢谢指点。改了之后 点击图片还是没反应。这个提示？@长夜迎月。
