function show_survey() {
	document.getElementById('cover_all').style.display = 'block';
	document.getElementById('survey_container').style.display = 'block';
	document.getElementById('survey_ask_bar').style.display = 'none';
}

function submit_survey(stage) {
	if (stage == 1) {
		var visit_reason = "";
		var found_looking_for = "";
		var first_visit = "";
		var hear_about_us = "";
		
		if (document.getElementById('visit_reason_number').checked == true) {
			visit_reason = 'number';
		} else if (document.getElementById('visit_reason_menu').checked == true) {
			visit_reason = 'menu';
		} else if (document.getElementById('visit_reason_price').checked == true) {
			visit_reason = 'price';
		} else if (document.getElementById('visit_reason_takeaway').checked == true) {
			visit_reason = 'takeaway';
		} else {
			visit_reason = '-';
		}
		
		if (document.getElementById('found_looking_for_easily').checked == true) {
			found_looking_for = 'easily';
		} else if (document.getElementById('found_looking_for_easier').checked == true) {
			found_looking_for = 'easier';
		} else if (document.getElementById('found_looking_for_no').checked == true) {
			found_looking_for = 'no';
		} else {
			found_looking_for = '-';
		}
		
		if (document.getElementById('first_visit_yes').checked == true) {
			first_visit = 'yes';
		} else if (document.getElementById('first_visit_no').checked == true) {
			first_visit = 'no';
		} else {
			first_visit = '-';
		}
		
		if (document.getElementById('hear_about_us_online_advert').checked == true) {
			hear_about_us = 'online_advert';
		} else if (document.getElementById('hear_about_us_search_engine').checked == true) {
			hear_about_us = 'search_engine';
		} else if (document.getElementById('hear_about_us_poster').checked == true) {
			hear_about_us = 'poster';
		} else if (document.getElementById('hear_about_us_friend').checked == true) {
			hear_about_us = 'friend';
		} else {
			hear_about_us = '-';
		}
		
		document.getElementById('save_survey_button').value = 'Saving your answers... thanks!';
		document.getElementById('save_survey_button').disabled = true;
		
		ajax.doGet("save_survey.php?stage="+stage+"&visit_reason="+visit_reason+"&found_looking_for="+found_looking_for+"&first_visit="+first_visit+"&hear_about_us="+hear_about_us, display_survey_next);
	
	} else if (stage == 2) {
		var survey_number = document.getElementById('survey_number').value;
		var could_search = "";
		var calculator = "";
		var rate = "";
		var order_online = "";
		var comments = document.getElementById('comments').value;

		if (document.getElementById('could_search_yes_have_done').checked == true) {
			could_search = "yes have done";
		} else if (document.getElementById('could_search_yes_not_interested').checked == true) {
			could_search = "yes not interested";
		} else if (document.getElementById('could_search_no').checked == true) {
			could_search = "no";
		} else {
			could_search = '-';
		}
		
		if (document.getElementById('calculator_yes_have_done').checked == true) {
			calculator = "yes have done";
		} else if (document.getElementById('calculator_yes_not_interested').checked == true) {
			calculator = "yes not_interested";
		} else if (document.getElementById('calculator_no').checked == true) {
			calculator = "no";
		} else {
			calculator = '-';
		}
		
		if (document.getElementById('rate_yes_have_done').checked == true) {
			rate = "yes have done";
		} else if (document.getElementById('rate_yes_not_interested').checked == true) {
			rate = "yes not interested";
		} else if (document.getElementById('rate_no').checked == true) {
			rate = "no";
		} else {
			rate = '-';
		}
		
		if (document.getElementById('order_online_very').checked == true) {
			order_online = 'very';
		} else if (document.getElementById('order_online_slightly').checked == true) {
			order_online = 'slightly';
		} else if (document.getElementById('order_online_no').checked == true) {
			order_online = 'no';
		} else {
			order_online = '-';
		}
		
		document.getElementById('save_survey_button').value = 'Saving your answers... thanks!';
		document.getElementById('save_survey_button').disabled = true;
		
		ajax.doGet("save_survey.php?stage="+stage+"&survey_number="+survey_number+"&could_search="+could_search+"&calculator="+calculator+"&rate="+rate+"&order_online="+order_online+"&comments="+comments, display_survey_next);
	}
}

function display_survey_next(result) {
	var target = document.getElementById('survey');
	target.innerHTML = result;
}

function close_survey() {
	document.getElementById('survey_container').style.display = 'none';
	document.getElementById('cover_all').style.display = 'none';
}

function close_survey_bar() {
	document.getElementById('survey_ask_bar').style.display = 'none';var exp = new Date();	    //set new date object	
	exp.setTime(exp.getTime() + (1000 * 60 * 60 * 24 * 1));     //set it 30 days ahead
	setCookie('survey_complete', 'true', exp);
	ajax.doGet('save_survey.php?stage=not_today', do_nothing);
}

function do_nothing() {};

function survey_completed() {
	var exp = new Date();	    //set new date object	
	exp.setTime(exp.getTime() + (1000 * 60 * 60 * 24 * 30));     //set it 30 days ahead
	setCookie('survey_complete', 'true', exp);
	close_survey();
}

function setCookie(name, value, expires) {	
	document.cookie = name + "=" + escape(value) + "; path=/" + ((expires == null) ? "" : "; expires=" + expires.toGMTString()); 
}