avoid lose data javascript

	//from https://github.com/tolk/tolk/
	$(function () {
	$("#submit").bind("click", function () {
	window.onbeforeunload = null;
	});
	// avoid lose data
	$(".translations").bind("keydown", function () {
	window.onbeforeunload = confirm;
	});
	$(".translations").bind("change", function () {
	window.onbeforeunload = confirm;
	});
	function confirm() {
	return "You are leaving this page with non-saved data. Are you sure you want to continue?";
	}
	});

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