html - How to replace text in a column (inside a table) with Javascript without any ID -


the code below shows rendered html (from compiled asp .net code). not able make changes including adding new attributes id.

i still javascript because there no unique id column, not replace underscore text "____________" other text.

the plan replace underscore in column 3 each row other text. there way identify column 3 javascript?

thank you.

    <table width='100%'>         <tr>             <td align="left" valign="top" class='clsreadonly'>row 1             </td>             <td align="left" valign="top" class='clsreadonly'>                 abc             </td>             <td align="left" valign="top" class='clsreadonly'>                 __________________________             </td>         </tr>         <tr>             <td align="left" valign="top" class='clsreadonly'>row 2             </td>             <td align="left" valign="top" class='clsreadonly'>                 def             </td>             <td align="left" valign="top" class='clsreadonly'>                 __________________________             </td>         </tr>         <tr>             <td align="left" valign="top" class='clsreadonly'>row 3             </td>             <td align="left" valign="top" class='clsreadonly'>                 ghi             </td>             <td align="left" valign="top" class='clsreadonly'>                 __________________________             </td>         </tr>     </table>

it depends on trying accomplish. if how table look, following:

var cells = document.getelementsbyclassname('clsreadonly');  cells[2].innerhtml = "row1 column3"; cells[5].innerhtml = "row2 column3"; cells[8].innerhtml = "row3 column3";

if don't know how many columns start with, have this:

var rows = document.getelementsbytagname('tr');  (var i=0; i<rows.length; i++) {     var cells = rows[i].getelementsbytagname('td');      cells[2].innerhtml = 'row'+(i+1)+' column3'; }

jquery make easier, can select tag, parent, etc. of course, can of in plain javascript, takes lot more work.

http://jsfiddle.net/bshza/


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