Q33 How do I get a value from a dropdown menu, and use it to change the location of another frame?

<frameset rows="20%,*">
    <frame src="frameA.html" name="frameA">
    <frame src="frameB.html" name="frameB">
</frameset>

<form name="drop">
<select name="down">
<option value="http://www.yahoo.com">Yahoo
<option value="http://www.netscape.com">Netscape
<option value="http://www.microsoft.com">Microsoft
</select>
<input name="submitName" type="button" value="Go"
onClick="top.frameB.location.href = this.form.drop.down.options[this.form.drop.down.selectedIndex].value;return false">
</form>

<form name="drop">
<select name="down">
<option value="http://www.yahoo.com">Yahoo
<option value="http://www.netscape.com">Netscape
<option value="http://www.microsoft.com">Microsoft
</select>
<input name="submitName" type="button" value="Go"
onClick="parent.frameB.location.href = this.form.drop.down.options[this.form.drop.down.selectedIndex].value;return false">
</form>