function thisPopup(URL, left, top, width, height, scrollbars) {
	var standardSetting = 'toolbar=0, location=0, directories=0, status=0, scrollbars=' + scrollbars;
	var customSetting = 'menubar=0, resizable=1, width=' + width + ', height=' + height;
	var positioning = 'left=' + left + ', top =' + top;
	// create window
	closePopup();
	oxl_win = window.open(URL, 'oxl', + '\'' + standardSetting + ', ' + customSetting + ', ' + positioning + '\'');
	oxl_win.focus();
}


// pop up to define which shopping list item is placed in
function getBescheinigung(URL) {
	var left = 0;
	var top = 30;
	var width = 800;
	var height = 550;
	var scrollbars = 1;
	thisPopup(URL, left, top, width, height, scrollbars);
}

function surveyMessage() {
	var left = 400;
	var top = 220;
	var width = 300;
	var height = 100;
	var scrollbars = 0;
	var URL = "survey_popup.php";
	thisPopup(URL, left, top, width, height, scrollbars);
}

function closeSurveyPopup() {
	opener.location.href = "main.php?template=survey.php";
	self.close();
}


function closePopup() {
	if (window.oxl_win) {
		window.oxl_win.close();
	}
}



// pop up to define which shopping list item is placed in
function zoomImage(URL, width, height, scrollbars) {
	var left = 100;
	var top = 50;
	var scrollbars = scrollbars;
	thisPopup(URL, left, top, width, height, scrollbars);
}