var dist = [
['CHICLANA DE LA FRONTERA',[]],
['CHIPIONA',[58]],
['EL PUERTO DE SANTA MARIA',[30,28]],
['JEREZ DE LA FRONTERA',[42,31,16]],
['LEBRIJA',[70,46,47,33]],
['PUERTO REAL',[19,40,12,30,58]],
['ROTA',[44,18,15,31,62,26]],
['SANLUCAR DE BARRAMEDA',[53,11,25,26,39,35,24]],
['TREBUJENA',[59,33,36,23,14,44,43,25]]
];

// Distance Calculator
// copyright 23rd April 2006, by Stephen Chapman
// permission to use this Javascript on your web page is granted
// provided that all of the code below in this script (including these
// comments) is used without any alteration
function reverse(a, b){if (a>b) return -1;if (a <b) return 1;return 0;}function setOptions(id) {var selbox = document.getElementById(id);selbox.options.length = 0;var ct = []; for (var i = dist.length - 1; i >= 0; i--) {ct[i] = dist[i][0]+','+i;} ct.sort(reverse); for (var i = dist.length - 1; i >= 0; i--) {var c = ct[i].split(','); selbox.options[selbox.options.length] = new Option(c[0],c[1]);}}function calc() {var v1 = document.getElementById('ca').value;var v2 = document.getElementById('cb').value;var km = 0;if (v1 != v2) km = dist[Math.max(v1,v2)][1][Math.min(v1,v2)];document.getElementById('k').value = km;document.getElementById('m').value = Math.round(km/1.60934);}function start() {setOptions('ca');setOptions('cb');};