[jQuery] if condition within a loop

[jQuery] if condition within a loop


Hello.
I am just starting to learn JQuery. I want to click on a div to set an
"on" class. When I click on another div, I want the first div to
release the "on" class and restore to default class. I also have a
hover effect that apply to divs that are not shown as "on."
I am trying to set an "If" condition within the "eachfunction" loop.
I've tried the "not" method, but I am not referring to the right
object. Can someone take a look?
Here is my code:
<html>
    <head>
    <title>test</title>
    <style type="text/css">
        #portMain{background-color:#99000}
        .portDiv{border:solid 2px #444444; font:normal 22px verdana;padding:
4px}
        .portDivOver{border:solid 2px #CCC000; font:normal 22px
verdana;padding:4px}
        .portDiv2{border:solid 2px #0000FF; font:normal 22px verdana;padding:
4px}
    </style>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/
libs/jquery/1.3.1/jquery.min.js"></script>
    <script type="text/javascript">
    $(function() {
        $.portBox = {
            box : $('#portMain div'),
            len : $('#portMain div').size()
            };
    $('#portMain').find('div').each(function(i) {
        $(this).addClass('portDiv');
    })
//**SETCLASS**//
    $('#portMain>div').click(function(){
             $(this).removeClass().addClass('portDiv2');
             $('#portMain').find('div').each(function(i) {
                if($('#portMain>div')[i] != $(this)){
                    $('#portMain>div')[i].removeClass().addClass('portDiv');
                    }
//    $('#portMain>div')[i].not($(this)).removeClass().addClass
('portDiv');
            })
    })
//**ENDCLICK**//
         $('#portMain div').mouseover(function() {
                  $(this).not('.portDiv2').removeClass().addClass('portDivOver');
            })
        $('#portMain div').mouseout(function() {
                 $(this).not('.portDiv2').removeClass().addClass('portDiv');
            })
    });
//**ENDFUNCT**//
</script>
    </head>
    <body>
    <div id="portMain">
        <div>port0</div>
        <div>port1</div>
        <div>port2</div>
        <div>port3</div>
        <div>port4</div>
        <div>port5</div>
    </div>
    <a href="http://www.yahoo.com">clickme</a>
    </body>
</html>