纯js按钮上显示系统动态时间代码

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纯js按钮上显示系统动态时间代码

2015-02-15 网页编程网 网页编程网

<script language="JavaScript">
var timerID = null;
var timerRunning = false;
// Called by both onLoad in BODY tag, and Resume button.
function startclock ()
   {
   // Make sure the clock is stopped
   stopclock();
   time();
   }
// Kills clock.
function stopclock ()
   {
   if(timerRunning)
      clearTimeout(timerID);
   timerRunning = false;
   }
function time ()
   {
   var now = new Date();
   var yr = now.getYear();
   var mName = now.getMonth() + 1;
   var dName = now.getDay() + 1;
   var dayNr = ((now.getDate()<10) ? "0" : "")+ now.getDate();
   var ampm = (now.getHours() >= 12) ? " P.M." : " A.M."
   var hours = now.getHours();
         hours = ((hours > 12) ? hours - 12 : hours);
   var minutes = ((now.getMinutes() < 10) ? ":0" : ":") +
now.getMinutes();
   var seconds = ((now.getSeconds() < 10) ? ":0" : ":") +
now.getSeconds();
   if(dName==1) Day = "Sunday";
   if(dName==2) Day = "Monday";
   if(dName==3) Day = "Tuesday";
   if(dName==4) Day = "Wednesday";
   if(dName==5) Day = "Thursday";
   if(dName==6) Day = "Friday";
   if(dName==7) Day = "Saturday";
   if(mName==1) Month="January";
   if(mName==2) Month="February";
   if(mName==3) Month="March";
   if(mName==4) Month="April";
   if(mName==5) Month="May";
   if(mName==6) Month="June";
   if(mName==7) Month="July";
   if(mName==8) Month="August";
   if(mName==9) Month="September";
   if(mName==10) Month="October";
   if(mName==11) Month="November";
   if(mName==12) Month="December";
   // String to display current date.
   var DayDateTime=(" "
       + Day
       + "     "
       + Month
       + " "
       + dayNr
       + ", "
       + ""
       + yr
       + "     "
       + hours
       + minutes
       + seconds
       + " "
       + ampm
        );
   // Displays Day-Date-Time on the staus bar.
   document.clock.face.value=DayDateTime;
   timerID = setTimeout("time()",1000);
   timerRunning = true;
   }
// Stops clock and clears status bar.
function clearStatus()
   {
   if(timerRunning)
      clearTimeout(timerID);
   timerRunning = false;
   window.status=" ";
   }
// -- End Hiding Here -->
</script>
<body onLoad="startclock ()">
<form name="clock" onSubmit="0">
<input type="button" name="face" size="20" value=" JavaScript!!  ">
</form>
</body>

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