使用getElementsByTagName来取得
<script>
var divs=document.getElementsByTagName("DIV");
for(var i=0;i<divs.length;i++){
alert(divs[i].name);
}
</script>
<script>
var divs=document.getElementsByTagName("DIV");
for(var i=0;i<divs.length;i++){
alert(divs[i].name);
}
</script>
document.getElementsByTagName("div")
function alldiv()
{
for(i=0;i<document.all.tags("div").length;i++)
alert(document.all.tags("div")[i].innerHTML);
}
</script>
<div id=div1>div111</div>
<div id=div2>div222</div>
<div id=div3>div333</div>
<input type=button onclick=alldiv()>