document.write('<script type="text/javascript" src="' + (isBackend?'../':'') + 'lib/js/item/item.js"></script>');

function showItemsList()
{
	var arrayPageSize = getPageSize();
	$('overlay').setStyle({ width: arrayPageSize[0] + 'px', height: arrayPageSize[1] + 'px', visibility: 'visible' });
    new Effect.Appear('overlay', { duration: 0.5, from: 0.0, to: 0.5 });
    var offset = document.viewport.getScrollOffsets();
    var left = (document.viewport.getWidth() + offset['left'] - 980)/2; if (left < 0) left = 0;
    var top = (document.viewport.getHeight() + offset['top'] - $('items-list').getHeight()) / 2; if (top < 0) top = 0; 
    $('items-list').setStyle({display: 'block', left: left + 'px', top: top + 'px'});    
}

function hideItemsList()
{
    $('overlay').setStyle({ width: 0 + 'px', height: 0 + 'px', visibility: 'hidden', opacity: 0.0 });
    $('items-list').setStyle({display: 'none'});    
}