get column values on textbox change event in gridview using jquery!

get column values on textbox change event in gridview using jquery!

Hi,
I have copied the following code from gridview (only first row). There is one textbox and two read only columns I want to access the values of  second “<td>100123</td>”  and third column  “<td>ABC Primary School</td>”    using Jquery on textbox events either  onkeypress or textchange or onblur.
 
  <tr style="background-color:#F7F7DE;">                    
<td><input name="ctl00$ContentPlaceHolder1$GdVAllFilesWithSortingOption$ctl02$txtgrade" type="text"                  onchange="javascript:setTimeout('__doPostBack(\'ctl00$ContentPlaceHolder1$GdVAllFilesWithSortingOption$ctl02$txtgrade\',\'\')', 0)"  onkeypress="if(WebForm_TextBoxKeyHandler(event) == false) return false;"
                          id="ctl00_ContentPlaceHolder1_GdVAllFilesWithSortingOption_ctl02_ txtgrade" Class="txtresult"   style="width:5%;" />
</td>
<td>100123</td>
<td>ABC Primary School</td>
</tr>
 
Any hint or code would be much appreciated.
Kind regards
learner