让Paypal立即重定向

Question

PayPal交易完成后，PayPal会显示：

Thanks for your order
Your payment of $XXXX.XX USD is complete.
You're now going back to MYSITE.
If you are not redirected within 10 seconds, click here.

我不希望买家等待10秒钟。如何将此时间减少到0秒？