HOw to print background images. It show's on my  page but when i give prnt command it will dissapre.......
My source is given below :
 
 
<body>
 
  <form id="form1" runat="server">
 
 
 
<table>
 
<tr>
 
<td style="background-image:url(images/watermark.jpg);">
 
xyz xyz 
 
xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz <br /><br />
 
xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz <br /><br />
 
xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz <br /><br />
 
xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz <br /><br />
 
xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz <br /><br />
 
</td>
 
</tr>
 
</table>
 
  <asp:Button ID="button1" runat="server" Text="print" OnClick="window.pirnt()" />
 
  </form>
 
   </body>