function LeftRightInit() {
        var l, r;
        l = document.getElementById('left');

        r = document.getElementById('right');
        if (l) {
            if (r) {
                var h = [l.clientHeight, r.clientHeight];
                h.sort(function(a, b) { return b - a; });
                l.style.height = r.style.height = h[0] + 'px';
            }
        } 
}