[jQuery] Select all even row in table that are not with a specified class.

[m.ugues]

Hallo all.
I got a table like this

<table class="font_quotazioni">
   <thead>
      <tr>
          <th title="Data Contabile" class="chars4">Nome</th>
      </tr>
   </thead>
   <tbody>
      <tr class="midlight" >
         <td>foo</td>
      </tr>
      <tr>
         <td>foo</td>
      </tr>
      <tr>
         <td>foo</td>
      </tr>
   </tbody>
</table>

In my document.ready I set a class on even rows

$("table.font_quotazioni tr:even").addClass("even");

I would like to exclude all the rows that got a certain class (e.g <tr
class="midlight" >)
Is it possible?