how to use javascript show the time?

code:

<

html

>

<

head

>

<

script

type

="text/javascript"

>

function

startTime()

{

var

today

=

new

Date()

var

h

=

today.getHours()

var

m

=

today.getMinutes()

var

s

=

today.getSeconds()

//

add a zero in front of numbers<10

m

=

checkTime(m)

s

=

checkTime(s)

document.getElementById(

'

txt

'

).innerHTML

=

h

+

"

:

"

+

m

+

"

:

"

+

s

t

=

setTimeout(

'

startTime()

'

,

500

)

}

function

checkTime(i)

{

if

(i

<

10

)

{i

=

"

0

"

+

i}

return

i

}

</

script

>

</

head

>

<

body

onload

="startTime()"

>

<

div

id

="txt"

></

div

>

</

body

>

</

html

>