Q532 How can I make sure that options selected from a drop down list open up the selection in the current frame if they are local files and opened up in the top frame if they are remote files?

<script language="JavaScript1.2"><!--
function surfto(selectlist) {
    var url = selectlist.options[selectlist.selectedIndex].value
    if (url != '') {
        if (url.indexOf('http://') > -1)
            top.location.href = url;
        else
            location.href = url;
    }
}
//--></script>

<form>
<select name="myOption" onChange="surfto(this)">
<option value="">Choose One:
<option value="local.htm">Local Page
<option value="http://www.somewhere.com/">Remote Page
</select>