$move_by = 143;
$frame_left = 0;
$frame_no = 1;
$start_middle = 0;

J(document).ready(function()
{
	$n_thumbs = J("#image_container").children().size(); 
	//alert($n_thumbs);
	$imgCont = $move_by * $n_thumbs; 

	J("#image_container").css({width : $imgCont});
	
	if($start_middle == 1)
		{

			$new_frame_no = ($n_thumbs/2).toFixed(0)
			
			$new_left = -($new_frame_no * $move_by);						
			$new_left_attr = $new_left+"px";
			
			J("#image_container").animate({left: $new_left_attr}, 300 );
			
			$frame_left = $new_left;
			$frame_no = ($new_frame_no/1 + 1);
		}
	
	J(".prev").click(function()
		{
			$new_frame_no = (($frame_no/1)-1);
			$new_left = (($frame_left/1) + $move_by);
			
			if($new_frame_no <= 0)
				{
					$new_left = -($imgCont-544);
					$new_frame_no = $n_thumbs-3;
				}
			$new_left_attr = $new_left+"px";
			J("#image_container").animate({left: $new_left_attr}, 300 );
			$frame_left = $new_left;
			$frame_no = $new_frame_no;
			
		});
	
	J(".next").click(function()
		{
			$new_frame_no = (($frame_no/1)+1);
			$new_left = (($frame_left/1) - $move_by);

			if($new_frame_no > ($n_thumbs-3))
				{		
					$new_left = 0;
					$new_frame_no = 1;
				}				
			$new_left_attr = $new_left+"px";
			J("#image_container").animate({left: $new_left_attr}, 300 );
			$frame_left = $new_left;
			$frame_no = $new_frame_no;
		});	
	
});