Consider the code below -

```
<form id="Form1" runat=server defaultbutton="cmdclick" style="height: 9%;">

    <form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="XT4SGK2B4H954">
<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
</form>

</form>

```

The inner form is not getting submitted. It refreshes the page on clicking on it.
What would be the better method? 

Note : Project is in ASP.NET.