how to use jquery no conflict

how to use jquery no conflict

hi guys! i was building a website using two jquery codes . first one for the slideshow banner and the other one for the menu but only one of them works, i've search on the web and i fouond something called jquery no conflict()
is this good?

this is the code inside de <head> tags
<!-- JavaScripts-->
<script type="text/javascript">
jQuery.noConflict();
</script>
/*This is the menu's*/
<script type='text/javascript' src="jquery-1.2.6.min.js"></script>
<script type='text/javascript' src="kwicks.js"></script>
<script type='text/javascript' src="custom.js"></script>
/*Here starts the sideshow*/
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/s3Slider.js"></script>
<script type="text/javascript">
    $(document).ready(function() {
        $('#slider').s3Slider({
            timeOut: 3000
        });
    });
</script>
</head>