$(document).ready(function() {
    $('.index-block').hover(
        function() {
            var img = $(this).find('img');
            $(img[0]).hide();
            $(img[1]).show();
            $(this).find('.text').css('color', '#ffffff');
        },
        function() {
            var img = $(this).find('img');
            $(img[0]).show();
            $(img[1]).hide();
            $(this).find('.text').css('color', '#919192');
        }
    );
    $('#arrow-left').click(function() {
        if (curr > 0) {
            curr --;
            
            if (curr == 0) $('#arrow-left').hide();
            if (curr + 3 == limit) $('#arrow-right').show();
            
            var left = curr * 270;
            $('#photos-slider').animate({left:'-'+left+'px'}, {queue:false, duration: 500});
        }
    });
    $('#arrow-right').click(function() {
        if ((curr + 2) < limit) {
            curr ++;
            
            if (curr == 1) $('#arrow-left').show();
            if (curr + 2 == limit) $('#arrow-right').hide();

            var left = curr * 270;
            $('#photos-slider').animate({left:'-'+left+'px'}, {queue:false, duration: 500});
        }
        
        
    });
});