Олег

$(function() {
	$(".goto_video").click(function() {
		$("html,body").animate({scrollTop:$("#info__video").offset().top+"px"},{duration:1E3});
		$("#info__video").slideToggle("slow");
		$(this).toggleClass("active");
		return false;
	});
});

$('a.container').click(function(){
  $('.img_box').css('background' , 'url(img/color' + $(this).data('bg') + '.jpg)');
  return false;
});

wp_enqueue_script(
 'first_js',
 get_template_directory_uri() . '/js/first.js',
 array(),
 false,
 true
);
wp_enqueue_script(
 'second_js',
 get_template_directory_uri() . '/js/second.js',
 array('first_js'),
 false,
 true
);

$("#btn").click(function () {
    $(this).text('in progress');

    console.log("--Start process--");

    var hold = 500;
    var elems = $(".col-xs-3");
    var count = elems.length;

    elems.each(function (i, t) {
        var $this = $(t);
        setTimeout(function () {
            console.log("Start animation " + $this.text());
            if ($this.hasClass("flip_effect_vertical")) {
                $this.removeClass("flip_effect_vertical");
            } else {
                $this.addClass("flip_effect_vertical");
            }
            $this.on('transitionend webkitTransitionEnd oTransitionEnd', function () {
                console.log("End animation " + $this.text());
            });
        }, i * hold);
        if (i === --count) success();
    });

    function success() {
        alert("Success");
        console.log("--End process--");
        $("#btn").text('start');
    }

});

$('#form').on('submit', function(){
    $.ajax({
        type: 'POST',  
        context: this,
        url: '/message.php',
        data: new FormData(this),
        cache: false,
        processData: false,      
        success: function(){ alert('Good'); },
        error: function(){ alert('Bad'); }
    });
    return false;
});