if($('a.ip_block') && ($('a.ip_block').size() > 4)){
	indexPromo_container = $('#index_promo');
	indexPromo_slider = $('#index_promo_slider');
	indexPromo_blocksCount = $('.ip_block').size();
	indexPromo_blockWidth = $('.ip_block').eq(0).width();
	indexPromo_slider.width(indexPromo_blocksCount * indexPromo_blockWidth);
	indexPromo_sliderWidth = indexPromo_slider.width();
	indexPromo_step = indexPromo_blockWidth * 4;
	indexPromo_totalSteps = indexPromo_sliderWidth / indexPromo_step;
	indexPromo_maxPrev = (Math.round(indexPromo_totalSteps)-1) * indexPromo_step;

	$('#prev_promo_clicker').click(function(){	
		if(isNaN(parseInt(indexPromo_slider.css('left'))) == true){
			indexPromo_leftOld = 0;
		}
		else {
			indexPromo_leftOld = parseInt(indexPromo_slider.css('left'));
		}	
		if(indexPromo_leftOld != 0){
			$('#prev_promo_clicker').hide();
			$('#prev_promo_clicker').parent().css({'opacity':'0.5','filter':'alpha(opacity = 50)'});
			indexPromo_leftNew = indexPromo_leftOld+indexPromo_step;
			indexPromo_slider.animate({'left':indexPromo_leftNew+'px'},900,'easeOutQuart',
				function(){
					$('#prev_promo_clicker').show();
					$('#prev_promo_clicker').parent().css({'opacity':'1','filter':'alpha(opacity = 100)'});
				}
			);
		}
	});

	$('#next_promo_clicker').click(function(){
		if(isNaN(parseInt(indexPromo_slider.css('left'))) == true){
			indexPromo_leftOld = 0;
		}
		else {
			indexPromo_leftOld = parseInt(indexPromo_slider.css('left'));
		}
		if((-indexPromo_leftOld) != indexPromo_maxPrev){
			$('#next_promo_clicker').hide();
			$('#next_promo_clicker').parent().css({'opacity':'0.5','filter':'alpha(opacity = 50)'});
			indexPromo_leftNew = indexPromo_leftOld-indexPromo_step;
			indexPromo_slider.animate(
				{'left':indexPromo_leftNew+'px'},900,'easeOutQuart',
				function(){
					$('#next_promo_clicker').show();
					$('#next_promo_clicker').parent().css({'opacity':'1','filter':'alpha(opacity = 100)'});
				}
			);
		}
	});
} 

if($('a.ip_block').size() <= 4){
	$('#prev_promo, #next_promo').css({display:'none'});
}

$(function() { $('#prod_left a').lightBox(); });


//$('#product .buy_btn').