Update! Scroll to updated code.

Add a slides counter ( current/total ) to bxSlider carousels, using bxSlider callbacks and methods.
You just have to add an html element ( ex. ‘<div id=”slide-counter”></div>’ ), where to show the numbers, and the code below will do the rest.

function insertCount(slide_curr,slide_count){
	$('#slide-counter').html('<strong>'+ (slide_curr + 1) +'</strong>/'+ slide_count);
};

var slider = $('#slideshow').bxSlider({
	auto: true,
	pager: false,
	onSliderLoad: function (){
		var slide_count = slider.getSlideCount();
		var slide_curr = slider.getCurrentSlide();
		insertCount(slide_curr,slide_count);
	},
	onSlideNext: function (){
		var slide_count = slider.getSlideCount();
		var slide_curr = slider.getCurrentSlide();
		insertCount(slide_curr,slide_count);
	},
	onSlidePrev: function (){
		var slide_count = slider.getSlideCount();
		var slide_curr = slider.getCurrentSlide();
		insertCount(slide_curr,slide_count);
	}
});

Because ‘onSlideNext’ and ‘onSlidePrev’ callbacks are executed only before each “Next” or “Prev” slide transition, if you want to use a ‘pager’ for navigating through slides, you’ll need to use the ‘onSlideAfter’ callback.

function insertCount(slide_curr,slide_count){
	$('#slide-counter').html('<strong>'+ (slide_curr + 1) +'</strong>/'+ slide_count);
};

var slider = $('#slideshow').bxSlider({
	auto: true,
	pager: false,
	onSliderLoad: function (){
		var slide_count = slider.getSlideCount();
		var slide_curr = slider.getCurrentSlide();
		insertCount(slide_curr,slide_count);
	},
	onSlideAfter: function (){
		var slide_count = slider.getSlideCount();
		var slide_curr = slider.getCurrentSlide();
		insertCount(slide_curr,slide_count);
	}
});

Here you can find a demo.

Updated code, and demo with the latest BxSlider version.
The old code with the 4.1.2 bxSlider version, throws an error if the “getSlideCount()” public method is called in a callback fuction.

$('#slide-counter').prepend('<strong class="current-index"></strong>/');

var slider = $('#slideshow').bxSlider({
	auto: true,
	onSliderLoad: function (currentIndex){
		$('#slide-counter .current-index').text(currentIndex + 1);
	},
	onSlideBefore: function ($slideElement, oldIndex, newIndex){
		$('#slide-counter .current-index').text(newIndex + 1);
	}
});

$('#slide-counter').append(slider.getSlideCount());

Updated demo

Adding leading zeros to Cycle’s pager can sometimes make a big visual difference. Using the pagerAnchorBuilder this can be achieved very simple:

pagerAnchorBuilder: function(idx, slide) {
	if (idx < 10) {
		return '<li><a href="#">0' + (idx+1) + '</a></li>';
	} else {
		return '<li><a href="#">' + (idx+1) + '</a></li>';
	}