gistfile1.js

function turkishUpperCase(s) {
    s = s.replace(/ı/g, 'I');
    s = s.replace(/i/g, 'İ');
    return s.toUpperCase();
}

function fixSmallCaps(selector) {
    $$(selector).each(function(e) {
        var text  = e.innerHTML;
        var upper = turkishUpperCase(text);
        var newText = '';

        var i = 0;
        while(i < text.length) {
            if(text.charAt(i) == upper.charAt(i)) {
                newText += upper.charAt(i);
                i++;
            } else {
                newText += '<span class="faux-small-caps">';
                while(text.charAt(i) != upper.charAt(i)) {
                    newText += upper.charAt(i);
                    i++;
                }
                newText += '</span>';
            }
        }

        e.update(newText);
    });
}