roundedCorners = function () {
    var divs = document.getElementsByTagName('div');
    var rounded_divs = [];
    for (var i = 0; i < divs.length; i++) {
        if (/\brounded\b/.exec(divs[i].className)) {
            rounded_divs[rounded_divs.length] = divs[i];
        }
    }
    for (var i = 0; i < rounded_divs.length; i++) {
        var original = rounded_divs[i];
        /* Make it the inner div of the four */
        //original.className = original.className.replace('rounded', '');
        /* Now create the outer-most div */
        var tr = document.createElement('div');
        tr.className = 'r';
        /* Swap out the original (we'll put it back later) */
        original.parentNode.replaceChild(tr, original);
        /* Create the two other inner nodes */
        var tl = document.createElement('div');
        tl.className = 'r';
        var br = document.createElement('div');
        br.className = 'r';
        /* Now glue the nodes back in to the document */
        tr.appendChild(tl);
        tl.appendChild(br);
        br.appendChild(original);
    }
}