gistfile1.txt

;(function ( $, window, document, undefined ) {
    $.fn.labelForPlaceholder = function(){
        return $(this).each(function(){
            if(!$(this).hasClass('has-label-for-placeholder')){
                $(this).keypress(function(){
                    if(!$(this).parents('.control-group').hasClass('has-had-keypress')){
                        $(this).parents('.control-group').addClass('has-had-keypress');
                    }
                });
                $(this).addClass('has-label-for-placeholder');
            }
        });
    }
})(jQuery, window, document);