function menu_goto( menuform )
{
  var baseurl = 'http://' ;
  selecteditem = menuform.url.selectedIndex ;
  newurl = menuform.url.options[ selecteditem ].value ;
  if (newurl.length != 0) {
    location.href = baseurl + newurl ;
  }
}
document.writeln( '<form action="slnamericagoto" method="get">' );
document.writeln( '<select name="url" onchange="menu_goto(this.form)">' );
document.writeln( '<option value="">North America</option>' );
document.writeln( '<option value="www.scubalinx.com/north_america/canada/canada.html">Canada</option>' );
document.writeln( '<option value="www.scubalinx.com/north_america/mexico/mexico.html">Mexico</option>' );
document.writeln( '<option value="www.scubalinx.com/north_america/usa/usa.html">USA</option>' );
document.writeln( '</select>' );
document.writeln( '</form>' );