function surfto(form) {var myindex=form.dest.selectedIndex
window.open(form.dest.options[myindex].value, target="_self"); }

function maakmenu()
{d.write('<select NAME="dest" onChange="surfto(this.form)" size="1">');
d.write('<option value="null">ga direct naar:</option>');
d.write('<option value=../index.html>het openingscherm</option>')
d.write('<option value=rotterdam.htm>kantoor rotterdam</option>')
d.write('<option value="amsterdam.htm">kantoor amsterdam</option>')
d.write('</select>')} 

d=document;

maakmenu();