var dist = [
['Athens',[]],
['Thessaloniki',[520]],
['Corinth',[82,545]],
['Patra',[220,500,139]],
['Sparti',[255,720,139,255]],
['Ioannina',[455,370,570,250,505]],
['Igoumenitsa',[560,470,545,355,610,370]],
['Volos',[310,245,380,330,550,410,375]]
];

// 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');}window.onload=start;