html and innerHTML method

html and innerHTML method

Hi guys
i have this HTML structure
  1. <table>
  2.       <tr><td></td></tr>
  3.       <tr><td></td></tr>
  4. </table>
i need to take all the tr element in HTML format, so i wanna take this output " <tr><td></td></tr>" in string format.
i do this: jQuery("table tr").html()
but the result is "<td></td>" how i can take the parent too?

I hope is clear
thanks in advance!