function setOptions(chosen) {
var selbox = document.contactForm.Boats;
selbox.options.length = 0;
if (chosen =="none") {
  selbox.options[selbox.options.length] = new Option('75\' Odyssey','75 Odyssey Class Houseboat');
  selbox.options[selbox.options.length] = new Option('75\' Excursion','75 Excursion Houseboat');
  selbox.options[selbox.options.length] = new Option('75\' Silver XTreme','75 Silver XTreme Houseboat');
  selbox.options[selbox.options.length] = new Option('75\' Silver XT','75 Silver XT Class Houseboat');
  selbox.options[selbox.options.length] = new Option('70\' Silver Millennium','70 Silver Millenium Class Houseboat');
  selbox.options[selbox.options.length] = new Option('70\' Millenium','70 Millenium Luxury Houseboat');
  selbox.options[selbox.options.length] = new Option('62\' Journey','62 foot Journey');
  selbox.options[selbox.options.length] = new Option('59\' Deluxe XT','59 XT Deluxe');
  selbox.options[selbox.options.length] = new Option('59\' DiscoveryXL','59 Discovery XL Class Houseboat');
  selbox.options[selbox.options.length] = new Option('59\' Discovery','59 Discovery Class Houseboat');
  selbox.options[selbox.options.length] = new Option('54\' Escape','54 Escape');
  selbox.options[selbox.options.length] = new Option('53\' / 54\' Adventurer','54/53 foot Adventurer');
  selbox.options[selbox.options.length] = new Option('48\' Navigator','48 Navigator Class Houseboat');
  selbox.options[selbox.options.length] = new Option('46\' VoyagerXL','46 Voyager XL Class Houseboat');
  selbox.options[selbox.options.length] = new Option('46\' Voyager','46 Voyager Class Houseboat');
  selbox.options[selbox.options.length] = new Option('46\' Expedition','46 Expedition Class Houseboat');
}
if (chosen == "Wahweap Marina") {
  selbox.options[selbox.options.length] = new Option('75\' Odyssey','75 Odyssey Class Houseboat');
  selbox.options[selbox.options.length] = new Option('75\' Excursion','75 Excursion Houseboat');
  selbox.options[selbox.options.length] = new Option('62\' Journey','62 foot Journey');
  selbox.options[selbox.options.length] = new Option('59\' DiscoveryXL','59 Discovery XL Class Houseboat');
  selbox.options[selbox.options.length] = new Option('59\' Discovery','59 Discovery Class Houseboat');
  selbox.options[selbox.options.length] = new Option('54\' Escape','54 Escape');
  selbox.options[selbox.options.length] = new Option('53\' / 54\' Adventurer','54/53 foot Adventurer');
  selbox.options[selbox.options.length] = new Option('48\' Navigator','48 Navigator Class Houseboat');
  selbox.options[selbox.options.length] = new Option('46\' VoyagerXL','46 Voyager XL Class Houseboat');
  selbox.options[selbox.options.length] = new Option('46\' Voyager','46 Voyager Class Houseboat');
  selbox.options[selbox.options.length] = new Option('46\' Expedition','46 Expedition Class Houseboat');
}
if (chosen == "Bullfrog Marina") {
  selbox.options[selbox.options.length] = new Option('75\' Excursion','75 Excursion Houseboat');
  selbox.options[selbox.options.length] = new Option('59\' DiscoveryXL','59 Discovery XL Class Houseboat');
  selbox.options[selbox.options.length] = new Option('59\' Discovery','59 Discovery Class Houseboat');
  selbox.options[selbox.options.length] = new Option('53\' / 54\' Adventurer','54/53 foot Adventurer');
  selbox.options[selbox.options.length] = new Option('46\' VoyagerXL','46 Voyager XL Class Houseboat');
  selbox.options[selbox.options.length] = new Option('46\' Voyager','46 Voyager Class Houseboat');
  selbox.options[selbox.options.length] = new Option('46\' Expedition','46 Expedition Class Houseboat');
}
if (chosen == "Antelope Point") {
  selbox.options[selbox.options.length] = new Option('75\' Silver XTreme','75 Silver XTreme Houseboat');
  selbox.options[selbox.options.length] = new Option('75\' Silver XT','75 Silver XT Class Houseboat');
  selbox.options[selbox.options.length] = new Option('70\' Millenium','70 Millenium Luxury Houseboat');
  selbox.options[selbox.options.length] = new Option('59\' Deluxe XT','59 XT Deluxe');
}
}