var timerID = null;
var timerRunning = false;
function stopclock (){
        if(timerRunning)
                clearTimeout(timerID);
        timerRunning = false;
}

function showtime() {
        var now = new Date();
        var hours = now.getHours();
        var minutes = now.getMinutes();
        var seconds = now.getSeconds()
        var timeValue = "" + ((hours < 10) ? "0" : "") + hours 
        timeValue += ((minutes < 10) ? ":0" : ":") + minutes
        timeValue += ((seconds < 10) ? ":0" : ":") + seconds
        //timeValue += (hours >= 12) ? " PM" : " AM"

	document.getElementById('horas').innerHTML = timeValue;

        // you could replace the above with this
        // and have a clock on the status bar:

        // document.write(timeValue);
        timerID = setTimeout("showtime()",1000);
        timerRunning = true;
}

function startclock () {
        // Make sure the clock is stopped
        stopclock();
        showtime();
}

document.write("<form name='clock' onSubmit='0'>")
document.write("<span class='titulo4'>Terça, 7 de Fevereiro</span>");
document.write("<br/><span class='titulo4' id='horas'></span>")
document.write("</form>");

//startclock ();