function change_items_per_page(cid,sid,val,searching,search_str)
{
	if (searching == true)
	{
		var callStr = 'index.php?action=search&start_at=0&items_per_page=' + val + '&search_str=' + search_str;
	}
	else 
	{
		var callStr = 'index.php?action=show_products&cid=' + cid + '&sid=' + sid + '&start_at=0&items_per_page=' + val;
	}
	document.location = callStr;
}