jquery.validator.defaults.js

$.validator.setDefaults({
    onfocusout: function(element, event) {
        if(element.tagName === 'TEXTAREA' || (element.tagName === 'INPUT' && element.type !== 'password')) {
            element.value = $.trim(element.value);
        }
        return $.validator.defaults.onfocusout.call(this, element, event);
    }
});