Remove accents in strings

This snippet removes diacritics from string containing Latin-1 Supplement, Latin Extended-A, Latin Extended-B and Latin Extended Additional special characters. Forked from: http://jsfiddle.net/billybraga/UHmnf/

by infralabs

JavaScript

function start() {
    document.write("<pre>");
    document.write("Original:\n");
    document.write(specialCharacters);
    document.write("\n");
    document.write("Converted:\n");
    document.write(removeDiacritics(specialCharacters));
    document.write("</pre>");
}

var specialCharacters = "";
specialCharacters += "Latin-1 Supplement\n";
specialCharacters += "ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ\n";
specialCharacters += "Latin Extended-A\n";
specialCharacters += "ĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſ\n";
specialCharacters += "Latin Extended-B\n";
specialCharacters += "ƒǺǻǼǽǾǿ\n";
specialCharacters += "Latin Extended Additional\n";
specialCharacters += "ẀẁẂẃẄẅỲỳ\n";


var defaultDiacriticsRemovalMap = [{
    'base': "A",
        'letters': /(&#65;|&#9398;|&#65313;|&#192;|&#193;|&#194;|&#7846;|&#7844;|&#7850;|&#7848;|&#195;|&#256;|&#258;|&#7856;|&#7854;|&#7860;|&#7858;|&#550;|&#480;|&#196;|&#478;|&#7842;|&#197;|&#506;|&#461;|&#512;|&#514;|&#7840;|&#7852;|&#7862;|&#7680;|&#260;|&#570;|&#11375;|[\u0041\u24B6\uFF21\u00C0\u00C1\u00C2\u1EA6\u1EA4\u1EAA\u1EA8\u00C3\u0100\u0102\u1EB0\u1EAE\u1EB4\u1EB2\u0226\u01E0\u00C4\u01DE\u1EA2\u00C5\u01FA\u01CD\u0200\u0202\u1EA0\u1EAC\u1EB6\u1E00\u0104\u023A\u2C6F])/g
}, {
    'base': "AA",
        'letters': /(&#42802;|[\uA732])/g
}, {
    'base': "AE",
        'letters': /(&#198;|&#508;|&#482;|[\u00C6\u01FC\u01E2])/g
}, {
    'base': "AO",
        'letters': /(&#42804;|[\uA734])/g
}, {
    'base': "AU",
        'letters': /(&#42806;|[\uA736])/g
}, {
    'base': "AV",
        'letters': /(&#42808;|&#42810;|[\uA738\uA73A])/g
}, {
    'base': "AY",
        'letters': /(&#42812;|[\uA73C])/g
}, {
    'base': "B",
        'letters': /(&#66;|&#9399;|&#65314;|&#7682;|&#7684;|&#7686;|&#579;|&#386;|&#385;|[\u0042\u24B7\uFF22\u1E02\u1E04\u1E06\u0243\u0182\u0181])/g
}, {
    'base': "C",
        'letters':...