$i = 0;
//將便當袋中的便當印出來
foreach($_SESSION['bag']->lunchbox_number as $lunchbox_number)
{
	if($i % 2 == 0)
		echo '<tr align="center" bgcolor="FFFFFF">';
	else
		echo '<tr align="center" bgcolor="#FFE7B3">';
		echo '<td align="center" width="100"><a href="javascript:showDetail(\''.$_SESSION['bag']->lunchbox_number[$lunchbox_number].'\')"><font class="font_view_content">'.$_SESSION['bag']->lunchbox_number[$lunchbox_number].'</font></a></td>';
		echo '<td align="center" width="100"><a href="javascript:showDetail(\''.$_SESSION['bag']->lunchbox_number[$lunchbox_number].'\')"><font class="font_view_content">'.$_SESSION['bag']->lunchbox_name[$lunchbox_number].'</font></a></td>';
		echo '<td align="center" width="80"><font class="font_view_content">'.$_SESSION['bag']->single_cost[$lunchbox_number].'</font></td>';
		echo '<td align="center" width="80"><font class="font_view_content">'.$_SESSION['bag']->quantity[$lunchbox_number].'</font></td>';
		echo '<td align="center" width="80"><font class="font_view_content">'.$_SESSION['bag']->price[$lunchbox_number].'</font></td>';
		echo '<td align="center" width="80"><a href="delete_item.php?lunchbox_number='.$lunchbox_number.'">刪除</a></td>';
		echo '</tr>';
 	 $i++;
}

//count_total_cost()

 function count_total_cost(){
        return $this->total_cost;	
    }