Searched forum and couldn't find an answer - sorry to bug you, but I'd appreciate any help here...

Web page has a form with an input field (select - dropdown) - and a javascript function to effect the field 'onchange'.
User selects an option and the javascript function (using 'onchange') opens the selected URL in the same browser window:

<script language="JavaScript">
function formHandler(form){
var URL =[].value;
window.location.href = URL;

<form name=form>
<SELECT NAME="site" onChange="javascript:formHandler()">
<OPTION VALUE=""> choose a state....
<OPTION VALUE="" target="_blank">OHIO

The "target=" is being ignored.

How do I get this function to open the site in a new browser tab/window?

Thank you!

- Michael