Q:

Find first and second td ONLY from table using jQuery

I am trying to only manipulate those two TD's.  There are a ton of nested tables that are on very old code that cannot be changed.
the table has no class. but the main structure i can see is like this.
<table>
  <tr>
    <td class="nowrap" "bunch of inline stuff"></td>
    <td "bunch of inline stuff">
  </tr>
</table>

that is what I can see. the rest thats inside, i dont really care about but its all nested tables.  
I want to be able to change all the "bunch of inline stuff" for ONLY those two td's but everything I seem to try runs all through the nested stuff.  
any help would be appreciated. If you can tell me what I did wrong, that would be great too.
this is everything I have tried already
//$('#main_content_wrapper table:first tbody tr td:nth-child(1)').attr('width','240').attr('id','ezweb_lhr').css('background','lime');
//$("#main_content_wrapper table:first td:nth-child(1)").attr('width','240').attr('id','ezweb_lhr').css('background','lime');
//$("#main_content_wrapper table:first tr:nth-child(1) td:nth-child(1)").attr('width','240').attr('id','ezweb_lhr').css('background','lime');
//$("#main_content_wrapper table tr:nth-child(1) td:nth-child(2)").attr('width','680').attr('id','ezweb_content').css('padding-left','20px').css('background','red');

A:

You can try this
$("#main_content_wrapper table:first").find("td")

this will give you an array of all elements which are td inside first table, which is inside element with id 'main_content_wrapper'. Using indexes you can find whether it is first or second. For eg, to access nth td element use
var nth_elem = $("#main_content_wrapper table:first").find("td")[n-1]

Remember ':nth-child' selector does not work in IE7 and IE8
Thanks

