Test if Flexslider loaded - or test if any element finished loading without AJAX events

gistfile1.js

// In my case, I had to wait for the Flexslider to load. The slider was added by the theme, not by my code, so I could not subscribe to the start callback event
jQuery("document").ready(function() {
	waitForSlider();
}); 
 
function waitForSlider() {
 	// Test if slider is visible, i.e. loaded
	if (jQuery(".wooslider-next").is(":visible")) {
		// Do your stuff here. Slider is loaded
	}	
	else
	{
		// Wait another 0,5 seconds
		setTimeout(waitForSlider, 500); 
	}	
}