The slider has ths class .content-slider so it should be the below. Performance Options need to be off when making these changes,
jQuery('.content-slider').each(function() {
var sliderAnimation = jQuery(this).attr('data-animation');
var autoplay = jQuery(this).attr('data-autoplay');
autoplay = ((autoplay === "yes") ? true : false);
jQuery(this).flexslider({
animation: sliderAnimation, //String: Select your animation type, "fade" or "slide"
slideshow: autoplay, //Boolean: Animate slider automatically
slideshowSpeed: 6000, //Integer: Set the speed of the slideshow cycling, in milliseconds
animationDuration: 1000, //Integer: Set the speed of animations, in milliseconds
smoothHeight: true,
directionNav: true, //Boolean: Create navigation for previous/next navigation? (true/false)
controlNav: false //Boolean: Create navigation for paging control of each clide? Note: Leave true for manualControls usage
});
});
.