A html table cols and rows are generated dynamically,

i.e, for the first instance it could be two rows and there columns. and next time it could be two rows and 10 columns

My question is how to adjust the with automatically of the table so that the table always appears 100% in the page adjusting the coulmn size and row size

    <table>
    <tr><td></td><td></td><td></td></tr>
    <tr><td></td><td></td><td></td></tr>
    </table>

    <table>
     <tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
     <tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
     <tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
  </table>

Thanks..