var po_serialScrollNbImagesDisplayed;
var po_serialScrollNbImages;
var po_serialScrollActualImagesIndex;

function po_serialScrollFixLock(po_event, po_targeted, po_scrolled, po_items, po_position){
	$('#productsorder_scroll_left').css('cursor', po_position == 0 ? 'default' : 'pointer').css('visibility', po_position ==0 ? 'hidden' : 'visible')
	$('#productsorder_scroll_right').css('cursor', po_position + po_serialScrollNbImagesDisplayed == po_serialScrollNbImages ? 'default' : 'pointer').css('visibility', po_position + po_serialScrollNbImagesDisplayed == po_serialScrollNbImages ? 'hidden' : 'visible');
	return true;
}

$(document).ready(function(){
//init the serialScroll for thumbs
	po_serialScrollNbImages = $('#productsorder_list li').length;
	ordermiddle = Math.round(po_serialScrollNbImages/2);
	po_serialScrollNbImagesDisplayed = 5;
	po_serialScrollActualImagesIndex = 0;
		if(po_serialScrollNbImages <=6)
			$('#productsorder_scroll_left').css('visibility', 'hidden');

	$('#productsorder_list').serialScroll({
		items:'li',
		prev:'a#productsorder_scroll_left',
		next:'a#productsorder_scroll_right',
		axis:'x',
		offset:0,
		stop:true,
		onBefore:po_serialScrollFixLock,
		duration:300,
		step: 1,
		lock: false,
		force:false,
		cycle:false
	});
	$('#productsorder_list').trigger( 'goto', [ordermiddle-3] );
});