<html>
<head>
<SCRIPT language=javascript>
function changeOptions(){
with(document.all.item("test"))
outerHTML=outerHTML.replace("</SELECT>","<option value='userid'>username</option></SELECT>");
alert(document.all.item("test").innerHTML);
}
</SCRIPT>
</head>
<body onload=changeOptions()>
<select name="test">
</select><br>
</body>
</html>
<head>
<SCRIPT language=javascript>
function changeOptions(){
with(document.all.item("test"))
outerHTML=outerHTML.replace("</SELECT>","<option value='userid'>username</option></SELECT>");
alert(document.all.item("test").innerHTML);
}
</SCRIPT>
</head>
<body onload=changeOptions()>
<select name="test">
</select><br>
</body>
</html>
outerHTML.replace("</SELECT>","<option value='userid'>username</option></SELECT>");
什么意思?