How to retrieve multiple values from html:select tag.

[ykong1214]

In my project, there is a single select tag,

<html:select property="userName" size="7">
<html:options collection="UserList" property="value" labelProperty="label" />
</html:select>
<br><br>
<input type="button" value="Select" onClick="go()">&nbsp;&nbsp;&nbsp;
<input type="button" value="Cancel" onClick="cancel()">

when user choose any one and click "select" button, the value will be transfered to original window:

function go() {
var aform = document.forms[0];
var bform = window.opener.document.forms[0];

bform.userName.value=aform.userName.value

window.close();
}


Now I need to make it able to choose multiple values, so I can concatenate it and transfer to original window, how do I retrieve multiple values ? Thanks.

<html:select property="userName" size="7" multiple="true">
<html:options collection="UserList" property="value" labelProperty="label" />
</html:select>
<br><br>
<input type="button" value="Select" onClick="go()">&nbsp;&nbsp;&nbsp;
<input type="button" value="Cancel" onClick="cancel()">

[ykong1214]

Find the answer myself, use userName.options.length and userName.options[i].selected to do the loop and processing.