//---------------cas-----------------
      var tick;
      function showTime()
      {
        var now = new Date();
        var hours = now.getHours();
        if(hours < 10) {hours = "0"+hours;}
        var minutes = now.getMinutes();
        if(minutes < 10) {minutes = "0"+minutes;}       
        var seconds = now.getSeconds();
        if(seconds < 10) {seconds = "0"+seconds;}        
        var show = "" + hours +" : "+minutes+" : "+seconds;
        document.rclock.rtime.value=show;
        tick=setTimeout("showTime()",1000);
        return(show)
      }