JQuery read textbox placeholder member, if the textbox value is empty. Thats wrong. This rVal return empty value, never return placeholder value.

jquery-rval.js

jQuery.fn.rVal = function () {
    if (this[0]) {
        var ele = $(this[0]);
        if (ele.attr('placeholder') != '' && ele.val() == ele.attr('placeholder')) {
            return '';
        } else {
            return ele.val();
        }
    }
    return undefined;
};