Capitalize peoples names jQuery snippet.

capitalize.js

// Scenario:
// Users enter name in all lowercase or all uppercase it fixes the case.
// This isn't 100% suitable for all names but eh whatever!
// Attempts to resepect intentional ' and " and intentional multiple case.

$.fn.capitalize = function() {
    $(this).blur(function(event) {
        var box = event.target;
        var txt = $(this).val();
    var lc = txt.toLocaleLowerCase();
        var startingWithLowerCaseLetterRegex = new RegExp(String.fromCharCode(92)+"b([a-z])", "g");
    if (!/([-'"])/.test(txt) && txt === lc || txt === txt.toLocaleUpperCase()) {
        var stringStart = box.selectionStart;
            var stringEnd = box.selectionEnd;
        $(this).val(lc.replace(startingWithLowerCaseLetterRegex, function(c) { return c.toLocaleUpperCase() }).trim());
        box.setSelectionRange(stringStart, stringEnd);
    }
    });
   return this;
}

// Usage:
$('input[type=text].capitalize').capitalize();

// Needed it for a contact form 7 in wordpress, thats why it looks weird and has no comments as it was stripping my \ character or changing new lines to <br> gah!