Simple Text Spinning Effect with jQuery ~ Web Speaks

Simple Text Spinning Effect with jQuery

jQuery has always been used to create random animations and effects on web pages. I have written a simple script in jQuery that animates the text in such a way that it looks like if it is spinning on its axis. I have used simple jQuery functions to provide the effect. Main logic is increasing and decreasing the 'letter-spacing' CSS property of the text which gives the simple spinning effect. See it working.

Live Demo Download Script

jQuery Code

$(document).ready(function() {
            var _spacing;                //folds letter spacing of the text
            var status;                    //expanding or contracting
            var max_spacing = 10;        //maximum expansion on right
            var min_spacing = -30;        //maximum expansion on left
            var el = $('#spin');        //element to be spinned
            _spacing = parseFloat(el.css('letter-spacing'));    //get the current spacing

            //start the spin effect
            setInterval(function() {
                spin(el);
            }, 80);

            function spin(el) {
                if (!isNumber(_spacing)) {
                    _spacing = 1;
                } else {
                    if (status == '+') {
                        _spacing++;
                    } else {
                        _spacing--;
                    }
                }

                if (_spacing == max_spacing) {
                    status = '-';
                } else if (_spacing == min_spacing) {
                    status = '+';
                }
                el.animate({
                    'letter-spacing': _spacing+'px'
                }, 100);
            }

            function isNumber(n) {
                return !isNaN(parseFloat(n)) && isFinite(n);
            }
        });

HTML Markup

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
    <title>Text Spinning Effect with jQuery | Webspeaks.in</title>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
</head>

<body>
    <div id="main">
        <h2 class="head">Text Spinning Effect with jQuery</h2>
        <div id="spin"><h2>This text will spin.</h2></div>
    </div>
</body>

</html>

CSS Code

#main{
        width:90%;
        margin:50px auto;
        font-family: Georgia, Times, serif;
        text-align:center;
        border: 1px double #cccccc;
    }
    h2{
        font-size: 26px;
        font-weight: normal;
        line-height: 1.4em;
        margin: 0.25em 0 0;
        padding: 0 0 4px;
        text-shadow: 1px 1px 0 white;
    }
    h2.head{
        border-bottom: 1px dotted #cccccc;
        color:#333333;
    }
    #spin{
        width:80%;
        padding-left:400px;
        margin:50px auto;
        text-align:left;
    }
    #spin h2{
        color: #888888;
    }

Simple Text Spinning Effect with jQuery

jQuery Code

HTML Markup

CSS Code

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