开关时间

<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='30' onfocus='this.blur()'>
	<input type='radio' name='rad' value='OFF' checked onclick="if(enabled==1) {document.clock.disp.value='';clearTimeout('TOfunc()' );enabled=0;}"> 关 
	<input type='radio' name='rad' value='on' onClick="if(enabled == 0) {var to =''; setTimeout( 'TOfunc()', 1000 ); enabled =1;}"> 开
</form>