JS有趣的案例1-点亮灯泡

<script>
function changeImage()
{
	element=document.getElementById(‘myimage‘)
	if (element.src.match("bulbon"))
 	{
  		element.src="/images/pic_bulboff.gif";
  	}
	else
   {
  		element.src="/images/pic_bulbon.gif";
   }
}
</script>
<img id="myimage" onclick="changeImage()"
src="/images/pic_bulboff.gif" width="100" height="180">
<p>点击灯泡就可以打开或关闭这盏灯</p>