.each only

I thought that .each would pull an array back of all matching, not children elements of matching as well.

What Im trying to do is alternate colours of visable rows, which I thought would be easy using jQuery and .each(), however my code seems to pick the child div elements instead of just the matching element:-

HTML:-

<div id="divTransactions">
      <div id="row56" class="clsTransactionRow">
            <div class="txtTransDate">2012-12-24</div>
            <div class="txtTransText">DB Payment</div>
            <div class="txtTransStatus">Cleared</div>
      </div>
      <div id="row57" class="clsTransactionRow">
            <div class="txtTransDate">2012-12-23</div>
            <div class="txtTransText">CC Payment</div>
            <div class="txtTransStatus">Held</div>
      </div>
      <div id="row58" class="clsTransactionRow">
            <div class="txtTransDate">2012-12-22</div>
            <div class="txtTransText">Standing Order</div>
            <div class="txtTransStatus">Disputed</div>
      </div>
<div>

CSS:-

#divTransactions {width:400px; }
.clsTransactionRow { width:400px; }
.clsTransactionRowEven { background-color: #FFFFFF; }
.clsTransactionRowOdd { background-color: #CCCCCC; }

.txtTransDate { width:133px; float:left;}
.txtTransText { width:133px; float:left; }
.txtTransStatus { width:133px; float:left; }

JQuery:-

var rowCount=0;
$("#divTransactions .clsTransactionRow :visible").each( function(_index, _value ) {
        $(this).removeClass('clsTransactionRowEven');
        $(this).removeClass('clsTransactionRowOdd');
        if (rowCount%2==0){
            $(this).addClass('clsTransactionRowEven');
        }
        else {
            $(this).addClass('clsTransactionRowOdd');
        }
        rowCount++;
        });

To show you what I mean, Ive put it on jsFiddle:-
http://jsfiddle.net/DEVdJ/

How can I just get the matching rows to return, and not all the child elements, so I can set the row colours correctly?