function formHandler(){
var URL = document.form.site.options[document.form.site.selectedIndex].value;
top.location.href = URL;
}

document.write('<form name="form">');
document.write('<input type=button value="Go!" onClick="javascript:formHandler()">');
document.write('<select name="site" size=1>');
document.write('<option value="http://www.crumlinviaduct.co.uk/indexmain.htm">Local Web links');
document.write('<option value="http://www.welshcoalmines.co.uk">Welsh Coal Mines');
document.write('<option value="http://www.abertillery.net/">Abertillery');
document.write('<option value="http://www.bpmrc.org.uk/Crumlin.shtml">Barry & Penarth model railway club');
document.write('<option value="http://www.xkeys.freeserve.co.uk">Crosskeys');
document.write('<option value="http://www.caerphilly.gov.uk">Caerphilly');
document.write('<option value="http://www.sirhowy.com">Sirhowy');
document.write('<option value="http://www.crumlinrfc.co.uk">Crumlin RFC');
document.write('<option value="http://www.newbridge-online.info">Newbridge Online');
document.write('<option value="http://cymruarywe.org">Cymru ar y We');
document.write('<option value="http://walesontheweb.org">Wales on the Web');
document.write('<option value="http://www.oakdalevillage.net/">Oakdale Village');
document.write('<option value="http://www.worldwidewales.tv">World Wide Wales');
document.write('<option value="http://www.cresselleyphotos.co.uk/">Cresselley Railwayana');
document.write('<option value="http://freespace.virgin.net/pinc.wendy/ICA/the_crumlin_arm1.htm">Monmouthshire Canal');
document.write('</form>');