Trigger click event?

Dear Developer,

Thanks for providing good plugin. I wanted to pass click event on one slider on clicking on other slider. Hence I passed different class names on different sliders and implemented this code in my header.php. But it`s not working. Here is the code:

$(‘.flexslider’).flexslider({
animation: “slide”,
controlNav: false,
animationLoop: false,
slideshow: false,
start: function(){
$(‘.imgslider .flex-next’).on(‘click’, function(e){
$(‘.cslider .flex-next’).trigger(‘click’);
});
$(‘.flex-prev’).on(‘click’, function(e){
$(‘.flex-prev’).trigger(‘click’);
});
}
});

Can you please tell me where i`m doing wrong?

https://wordpress.org/plugins/ml-slider/