<script language="javascript">
// stopwatch script by Brothercake - http://www.brothercake.com/

var base = 60;

var clocktimer,dateObj,dh,dm,ds,ms;
var readout='';
var h=1;
var m=1;
var tm=1;
var s=0;
var ts=0;
var ms=0;
var show=true;
var init=0;
var mPLUS=new Array(
'm0',
'm1',
'm2',
'm3',
'm4',
'm5',
'm6',
'm7',
'm8',
'm9'
);
var ii=0;

function clearALL() {
clearTimeout(clocktimer);
h=1;m=1;tm=1;s=0;ts=0;ms=0;
init=0;show=true;
readout='00:00:00.00';
document.clockform.clock.value=readout;
var CF = document.clockform;
for (ij=0;ij<=9;ij++) { CF[mPLUS[ij]].value = ''; }
ii = 0;
}

function addMEM() {
if (init>0) {
    var CF = document.clockform;
    CF[mPLUS[ii]].value = readout;
    if (ii==9) { ii = 0; } else { ii++; }
    }
}

function startTIME() {

var cdateObj = new Date();
var t = (cdateObj.getTime() - dateObj.getTime())-(s*1000);

if (t>999) { s++; }

if (s>=(m*base)) {
ts=0;
m++;
} else {
ts=parseInt((ms/100)+s);
if(ts>=base) { ts=ts-((m-1)*base); }
}

if (m>(h*base)) {
tm=1;
h++;
} else {
tm=parseInt((ms/100)+m);
if(tm>=base) { tm=tm-((h-1)*base); }
}

ms = Math.round(t/10);
if (ms>99) {ms=0;}
if (ms==0) {ms='00';}
if (ms>0&&ms<=9) { ms = '0'+ms; }

if (ts>0) { ds = ts; if (ts<10) { ds = '0'+ts; }} else { ds = '00'; }
dm=tm-1;
if (dm>0) { if (dm<10) { dm = '0'+dm; }} else { dm = '00'; }
dh=h-1;
if (dh>0) { if (dh<10) { dh = '0'+dh; }} else { dh = '00'; }

readout = dh + ':' + dm + ':' + ds + '.' + ms;
if (show==true) { document.clockform.clock.value = readout; }

clocktimer = setTimeout("startTIME()",1);

}

function findTIME() {
if (init==0) {
dateObj = new Date();
startTIME();
init=1;
} else {
if(show==true) {
    show=false;
    } else {
    show=true;
    }
}
}

</script>

<form name=clockform>
<table cellpadding=2 cellspacing=0 border=0>
<tr>
<td><input name=clearer type=button value=" reset " onclick="clearALL()"></td>
<td><input name=clock size=12 value="00:00:00.00"></td>
</tr>
<tr>
<td><input name=marker type=button value="  m +  " onclick="addMEM()"></td>
<td><input name=starter type=button value="start / pause" onclick="findTIME()"></td>
</tr>
<tr><td colspan=2><b>m 0</b>  <input name=m0 size=12></td></tr>
<tr><td colspan=2><b>m 1</b>  <input name=m1 size=12></td></tr>
<tr><td colspan=2><b>m 2</b>  <input name=m2 size=12></td></tr>
<tr><td colspan=2><b>m 3</b>  <input name=m3 size=12></td></tr>
<tr><td colspan=2><b>m 4</b>  <input name=m4 size=12></td></tr>
<tr><td colspan=2><b>m 5</b>  <input name=m5 size=12></td></tr>
<tr><td colspan=2><b>m 6</b>  <input name=m6 size=12></td></tr>
<tr><td colspan=2><b>m 7</b>  <input name=m7 size=12></td></tr>
<tr><td colspan=2><b>m 8</b>  <input name=m8 size=12></td></tr>
<tr><td colspan=2><b>m 9</b>  <input name=m9 size=12></td></tr>
</form>
</table>