 // counter
            var a = 0;
            $(window).scroll(function() {
                var oTop = $('#counter').offset().top - window.innerHeight;
                if (a == 0 && $(window).scrollTop() > oTop) {
                    $('.counter-value').each(function() {
                        var $this = $(this),
                            countTo = $this.attr('data-count');
                        $({
                            countNum: $this.text()
                        }).animate({
                                countNum: countTo
                            },

                            {

                                duration: 2000,
                                easing: 'swing',
                                step: function() {
                                    $this.text(Math.floor(this.countNum));
                                },
                                complete: function() {
                                    $this.text(this.countNum);
                                    //alert('finished');
                                }

                            });
                    });
                    a = 1;
                }
            });