Randomly Rotate Content Of A Span

I'm trying to change a of text to one of seven chunks of text. I've found a tutorial that can help me do it using the Javascript below, however, it relies on the selec

Solution 1:

Something like this works:

Javascript

<script type="text/javascript">
    $(document).ready( function() {

        // hide all of the tips
        $('#tips').children('.tip').hide();

        // randomly select one tip to show
        var length = $("#tips .tip").length;    
        // **EDIT **
        // This code was buggy!
        //var ran = Math.floor(Math.random()*length) + 1;
        //$("#tips .tip:nth-child(" + ran + ")").show();
        // Use this instead:
        var ran = Math.floor((Math.random()*length));
        $('#tips > .tip:eq('+ran+')').show();
    });
</script>

HTML

<p id="tips">
    <strong>Random Tip: </strong>
    <span class="tip">This is tip 1.</span>
    <span class="tip">This is tip 2.</span>
    <span class="tip">This is tip 3.</span>
    <span class="tip">This is tip 4.</span>
    <span class="tip">This is tip 5.</span>
    <span class="tip">This is tip 6.</span>
    <span class="tip">This is tip 7.</span>
</p>