var isIE5=navigator.userAgent.toUpperCase().indexOf("MSIE 5")!=-1; 
            function adjustHeight() {
            var newHeight;
           // alert(document.getElementById("content").clientHeight);
            if (document.getElementById("content").clientHeight > 400)
            {    
                newHeight = document.getElementById("content").clientHeight + 400;
            }
            else
            {
                newHeight = 900;
            }    
            document.getElementById("centered").style.height = newHeight + 'px' ;
        }