gistfile1.js

var 
	slide12 = false,
	slide13 = false;

$multiChartsWrapSlide1.on('click', function () {
	// code
	slide12 = true;
});

if (slide12 = true) {
	$multiChartsWrapSlide1.on('click', function () {
		// code
		slide13 = true;
});

$multiChartsWrapSlide1.on('click', function () {
// code
if(!slide12) {
return falsel
}
slide13 = true;
});