var severstal_carousel = {
	
	vars : {
		block_width : 0,
		block_margin : 0,
		blocks_in_line : 3,
		blocks_margin_fix : 0
	},
	
	items : {
		resize : function() {
			$cells_count = $("[id*='documents_cell_']").length;
			
				$cell_width = ($('.klientam_block').width() - 25*2) / 3;
			
			
			$carousel = $("[id*='carousel_severstal_']");
			$carousel.each(function() {
				$carousel = $(this);
				$carousel_items = $carousel.find("[id*='item_']");
				$carousel_items.css('width',$cell_width);
				
				$carousel.css('width', ($cell_width * 3) + (severstal_carousel.vars.block_margin * 2));
				$carousel.parent().css('width', $carousel.css('width'));
				
				$carousel.attr('total_items', $carousel_items.length);
				$carousel.children('div').css('width', ($carousel.attr('total_items') * ($cell_width + severstal_carousel.vars.block_margin)));
				
			});
			severstal_carousel.vars.block_width = $cell_width;
		},
		innerinit : function() {
			$carousel = $("[id*='carousel_severstal_']");
			$carousel_width = new String($carousel.width());
			$carousel_width = $carousel_width.replace('px','');
			if($carousel_width < 890) {
				severstal_carousel.vars.blocks_in_line = 4;
				severstal_carousel.vars.blocks_margin_fix = 1.5;
				
			} else {
				severstal_carousel.vars.blocks_in_line = 5;
				severstal_carousel.vars.blocks_margin_fix = -0.5;
			}
			$cell_width = (new Number($carousel_width) - (25 - severstal_carousel.vars.blocks_margin_fix) * (severstal_carousel.vars.blocks_in_line + 1)) / severstal_carousel.vars.blocks_in_line;
			$carousel.each(function() {
				$carousel = $(this);
				$carousel_items = $carousel.find("[id*='item_']");
				$carousel_items.each(function() {
					$(this).css('width',$cell_width);
				});
				$carousel.attr('total_items', $carousel_items.length);
				$carousel.children('div').css('width', ($carousel.attr('total_items') * ($cell_width + severstal_carousel.vars.block_margin)));
			});
			
			severstal_carousel.vars.block_width = $cell_width;
		}
	},
	
	scroll : {
		shift : function($carousel, direction) {
			if($carousel.attr('carousel_locked') != 'locked') {
				$carousel.attr('carousel_locked','locked');
				
				$scroll_div = $carousel.children('div');
				
				if(direction > 0) {
					$scroll_left = (new Number($scroll_div.css('left').replace('px','').replace('auto',0)) - (severstal_carousel.vars.block_width + severstal_carousel.vars.block_margin));
					$total_items = $carousel.attr('total_items');
					$total_items_length = (-1) * (severstal_carousel.vars.block_width + severstal_carousel.vars.block_margin) * ($total_items - severstal_carousel.vars.blocks_in_line);
					if($scroll_left < $total_items_length) {
						$scroll_left = $total_items_length;
					}
					if($scroll_left > 0) {
						$scroll_left = 0;
					}
					$scroll_div.animate({left: $scroll_left + 'px'},200);
				} else if(direction < 0) {
					$scroll_left = (new Number($scroll_div.css('left').replace('px','').replace('auto',0)) + (severstal_carousel.vars.block_width + severstal_carousel.vars.block_margin));
					if($scroll_left > 0) {
						$scroll_left = 0;
					}
					$scroll_div.animate({left: $scroll_left + 'px'},200);
				}
				$carousel.attr('carousel_locked','unlocked');
			}
		}
	}
}