JavaScript如何为所有相同的控件添加相同的事件?

Question

有一种写法是这样的：<script 
 for="name" 
 event="onclick" 
 language="JavaScript">
...JavaScript code which handles the event...
</script>但我没有测试过

Answer 1

var imgs = document.getElementsByTagName("img");
for(var i=0; i<imgs.length; i++)
{
    e = imgs[i];
    e.onmouseover = function(){this.className='mOver';};
    e.onmouseout  = function(){this.className='mOut';};
    e.onmousedown = function(){this.className='mDown';};
    e.onmouseup   = function(){this.className='mOverAndUp';};
}

Answer 2

不行啊,大哥!!! this是什么对象,不是指向e啊

Answer 3

var objsImg = document.all.tags("IMG");
for(var i=0; i<objsImg.length; i++)
{
var e = objsImg[i]
e.onmouseover = function(){e.class = "omover";};
e.onmouseout = function(){e.class='mOut';};
e.onmousedown = function(){e.class='mDown';};
e.onmouseup = function(){e.class='mOverAndUp';};
}