好象真的是这样...不过楼主可以这样:
<script language=javascript>
var _select = window.document.createElement("select"); window.document.body.appendChild(_select);
setTimeout( "_select.size=10" , 1 )
</script>
<script language=javascript>
var _select = window.document.createElement("select"); window.document.body.appendChild(_select);
setTimeout( "_select.size=10" , 1 )
</script>
var selectObj=window.document.createElement("<select size=5>");
window.document.body.appendChild(selectObj);
</script>