代码如下:

<script language=javascript>

var enabled=0;

function tofunc() {

to = window.settimeout( tofunc(), 1000);

var today = new date();

document.clock.disp.value = today.tolocalestring();

}

</script>

<form name=clock>

<input type=text name=disp value= size=20

onfocus=this.blur() ><br>

<input type=radio name=rad value=off onclick=if( enabled==1 )

{

document.clock.disp.value='';

cleartimeout( to );

enabled = 0;

}

checked>关<font color=#ffff99> </font>

<input type=radio name=rad value=on onclick=if( enabled == 0 )

{

var to = settimeout( 'tofunc()', 1000 );

enabled = 1; } >开<font color=#ffff99> </font>

</form>

插入到网页中看看