jQuery(document).ready(function() {

	// add onclick handler to submit button
	var btn = jQuery('#dbfbSubmitBtn');
	btn.click(dbfbSubmitForm);

});


function dbfbSubmitForm() {

	if (!dbfbValidate()) {

		return false;

	}


	// disable submit button
	jQuery('#dbfbSubmitBtn').attr('disabled', 'disabled');

	// show spinning gif
	var spinImg = jQuery('.dbfbSubmitTd img');
	spinImg.css('visibility', 'visible');


	var nameObj = jQuery('#dbfbName');
	var name = nameObj.val();

	var emailObj = jQuery('#dbfbEmail');
	var email = emailObj.val();

	var companyObj = jQuery('#dbfbCompany');
	var company = companyObj.val();

	var phoneObj = jQuery('#dbfbPhone');
	var phone = phoneObj.val();

	var titleObj = jQuery('#dbfbTitle');
	var title = titleObj.val();

	var message = get_rich('dbfbMessage');


	var params = {
		fbName: name,
		fbEmail: email,
		fbCompany: company,
		fbPhone: phone,
		fbTitle: title,
		fbMessage: message
	};


	jQuery.post('dbfb_send.php', params,
		function(xml) {

			var response = jQuery('Response > Data', xml);
			var data = jQuery(response[0]);

			var error = parseInt(data.attr('error'));
			var message = data.attr('message');


			// hide spinning gif
			spinImg.css('visibility', 'hidden');

			// enable submit button
			jQuery('#dbfbSubmitBtn').removeAttr('disabled');


			// show message received
			dbfbShowMsg(message, !error);


			// clean feedback form fields
			if (!error) {
				nameObj.val('');
				emailObj.val('');
				companyObj.val('');
				phoneObj.val('');
				titleObj.val('');
				set_rich('dbfbMessage', '');
			}

		}
	);

}


function dbfbValidate() {

	var emailObj = jQuery('#dbfbEmail')
	var email = emailObj.val();

	isEmail = validate_notempty(email);

	var phoneObj = jQuery('#dbfbPhone')
	var phone = phoneObj.val();


	if (!isEmail && !validate_notempty(phone)) {

		emailObj.focus();
		dbfbShowMsg('Введите Ваш email или номер телефона!');

		return false;

	}

	if (isEmail && !validate_email(email)) {

		emailObj.focus();
		dbfbShowMsg('Проверьте правильность введенного email!');

		return false;

	}

	var richText = get_rich('dbfbMessage');
	var richTextLC = richText.toLowerCase()
	if (!validate_notempty(richText) || richTextLC == '<br />' ||
		richTextLC == '<p>&nbsp;</p>') {

		re_focus('dbfbMessage');
		dbfbShowMsg('Введите сообщение!');

		return false;

	}

	return true;
}

var dbfbTOut;
function dbfbShowMsg(msg, isMsg) {
	clearTimeout(dbfbTOut);

	var el = document.getElementById('dbfbMsg');

	if (!el) {
		el = $('<div id="dbfbMsg" class="dbfbMsg">asdf</div>');
		el = el.insertBefore('#dbfbTable');
	} else {
		var el = $('#dbfbMsg');
	}

	el.stop();
	el.css('opacity', 1);
	el.html(msg);

	el[isMsg ? 'removeClass' : 'addClass']('dbfbErr');
	el.css('display', 'block');

	dbfbTOut = setTimeout(function () {
		el.fadeOut('slow', function () { el.css('display', 'none'); });
	}, 10000);
}