Prevent accidentially closing the survey

$(document).on('ready pjax:scriptcomplete',function(){
    /**
     * Code included inside this will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute
     * @see https://learn.jquery.com/using-jquery-core/document-ready/
     */
});
 
 
//FEATURES: (2015-03-27) Now with fix for iframes (e.g. file uploader) and the template editor 
function goodbye(e) {
    if(!$('body', top.document).hasClass('submitted') && !$('#completed').length && !$('.templateeditor', top.document).length) { //check if a button was used to navigate OR the survey is completed OR the template is displayed in the template editor
 
		if(!e) e = window.event;
		//e.cancelBubble is supported by IE - this will kill the bubbling process.
		e.cancelBubble = true;
		e.returnValue = 'Are you sure you want to quit this survey?'; //This is displayed on the dialog for IE
 
		//e.stopPropagation works in Firefox.
		if (e.stopPropagation) {
			e.stopPropagation();
			e.preventDefault();
		}
 
		return 'Are you sure you want to quit this survey?'; // For chrome
	}
}
 
window.onbeforeunload = goodbye;
 
$(document).on('click', '.button, .changelang, [name="move"]', function(event){ //added .changelang here, please add other classes if you know which should be allowed to navigate
	$('body', top.document).addClass('submitted');
});
 
(window).on('beforeunload', function(){
var c=confirm();
if(c){
return true;
}
else
return false;
}); 

$(document).on('click', '.button, .changelang, .dropdown-toggle, [name="move"]', function(event){ //added .changelang here, please add other classes if you know which should be allowed to navigate
	$('body', top.document).addClass('submitted');
});