var infoBlock = Class.create();
	infoBlock.prototype =
	{
		initialize: function( left_pointer_id, right_pointer_id, container_id, tag_name )
		{
			this.blocks = new Array();
			this.blocks = $(container_id).getElementsByTagName( tag_name );
			this.blocks_count = this.blocks.length-1;

			this.left_pointer = $(left_pointer_id);
			this.right_pointer = $(right_pointer_id);

			this.current_index = 0;

			for( var i=1; i<=this.blocks_count; i++ )
			{
				this.blocks[i].addClassName( 'hide' );
			}

			Event.observe( this.left_pointer, 'click', this.switchBlock.bind( this, 'left' ) )

			Event.observe( this.right_pointer, 'click', this.switchBlock.bind( this, 'right' ) )
		},

		switchBlock: function( direction )
		{
			this.blocks[ this.current_index ].addClassName( 'hide' );

			if( direction == 'right' )
			{
				this.current_index = ( this.current_index == this.blocks_count )? 0 : this.current_index+1 ;
			}
			else if( direction == 'left' )
			{
				this.current_index = ( this.current_index == 0 )? this.blocks_count : this.current_index-1 ;
			}

			this.blocks[ this.current_index ].removeClassName( 'hide' );
		}
	};