select跳转菜单新窗口

<select onchange="window.open(this.options[this.selectedIndex].value)" name="select">
<option value="http://www.microsoft.com/ie" selected="selected">Internet Explorer</option>
<option value="http://www.microsoft.com">Microsoft Home</option>
<option value="http://msdn.microsoft.com">Developer Network</option>
</select>