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Hidden Alarm Clock? 2

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dkirkdrei

dkirkdrei

Programmer
Dec 14, 2007
5
US
I have a page that will be displayed on a monitor continuously, 24 hours a day, 7days a week, 365 yada yada yada... I need to create a script that monitors system time and refreshes the browser every morning at 5:00am est. Can someone point me in the right direction?
 
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Try one of the Javascript websites or do a Google search for "Javascript clock" and "Javascript refresh page"

Lee
 
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Something like,

Code: 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "[URL unfurl="true"]http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">[/URL]
<html xmlns="[URL unfurl="true"]http://www.w3.org/1999/xhtml">[/URL]
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
window.onload=clock();
function clock(){
var t,a,d=new Date();
t=d.toLocaleTimeString();
a=t.split(':');
t=a[0]+':'+a[1];
if(t>'04:59'){window.location='[URL unfurl="true"]http://point-to-myself.com';}[/URL]
setTimeout("clock()",10000);
}
</script>
</body>
</html>
 
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MarkZK, I'll give you a star if you can point out the one major flaw with the code you posted.

-kaht

Lisa, if you don't like your job you don't strike. You just go in every day and do it really half-assed. That's the American way. - Homer Simpson

[small]<P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <.</B>[/small]
 
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should be if(t=='05:00') ?, how about I give you a start for telling me ? :)
 
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maybe this then,


Code: 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "[URL unfurl="true"]http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">[/URL]
<html xmlns="[URL unfurl="true"]http://www.w3.org/1999/xhtml">[/URL]
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
window.onload=clock();
function clock(){
var t,a,d=new Date();
t=d.toLocaleTimeString();
a=t.split(':');
t=a[0]+':'+a[1]+':'+a[2].substr(0,9);
if(t>'15:19:30'){window.location='[URL unfurl="true"]http://point-to-myself.com';}[/URL]
setTimeout("clock()",1000);
}
</script>
</body>
</html>
 
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sorry, pasted the wrong one somehow,

this ?
Code: 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "[URL unfurl="true"]http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">[/URL]
<html xmlns="[URL unfurl="true"]http://www.w3.org/1999/xhtml">[/URL]
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
window.onload=clock();
function clock(){
var t,a,d=new Date();
t=d.toLocaleTimeString();
a=t.split(':');
t=a[0]+':'+a[1]':'+a[2].substr(0,9);
if(t=='05:00:00'){window.location='[URL unfurl="true"]http://point-to-myself.com';}[/URL]
setTimeout("clock()",1000);
}
</script>
</body>
</html>
 
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That is closer to what I was expecting, so a star for the effort. Your original code would have refreshed the page continuously throughout the day after 5:00am. Since the OP only wanted it to refresh once, your original code wouldn't have worked. Your latest post that checks to make sure it's equal to 5:00 will not have the problems that the original one did. The only problem with your most recent code is if the page gets caught up on a cycle where the timeout is called @ 4:59:99.999 and the cpu cycles used to perform the function take over a millisecond and bump the next time checked over to 5:00:01.000. Will it ever happen? Probably not, but it's possible that it could.

What I would do in this instance is pass a value in the querystring to the page. This value should determine the next day the page is refreshed.
Code: 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "[URL unfurl="true"]http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">[/URL]
<html xmlns="[URL unfurl="true"]http://www.w3.org/1999/xhtml">[/URL]
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
var refreshDate = new Date([gray][i]date pulled from querystring[/i][/gray]);

window.onload = function () {
   window.setInterval("clock()",1000);
}

function clock(){
   var d = new Date();
   if (d.getTime() >= refreshDate.getTime()) {
      d.setDate(d.getDate() + 1)
      var newRefreshDate = d.getFullYear() + "/" + (d.getMonth() + 1) + "/" + d.getDate() + " 05:00";
      window.location = "[URL unfurl="true"]http://server/page.html?refreshDate="[/URL] + newRefreshDate;
   }
}
</script>
</body>
</html>

-kaht

Lisa, if you don't like your job you don't strike. You just go in every day and do it really half-assed. That's the American way. - Homer Simpson

[small]<P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <.</B>[/small]
 
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Thanks for all the responses. I ended up using:
Code: 
<script type="text/javascript">
    var reloadTime = "5:00:00"; 
    function startTime()
    {
	    var today=new Date();
	    var h=today.getHours();
	    var m=today.getMinutes();
	    var s=today.getSeconds();
	    
	    m=checkTime(m);
	    s=checkTime(s);
	    var time = h+":"+m+":"+s;
	    document.getElementById('txt').innerHTML=time;
	    if (time ==reloadTime)
	    {
		    window.location.reload()
	    }
	        t=setTimeout('startTime()',500);
        }
            function checkTime(i)
        {
	        if (i<10)
	    {
	        i="0" + i;
	    }
	        return i;
    }
</script>
and then in the html:
Code: 
<body onload="startTime()">
<div id="txt" ></div>
I have the div's display set to none with css so that the clock does not show on the screen
 
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Using indentation that does not make any sense is just as helpful as not using indentation at all....


CS101 folks, we should have all learned this a long time ago...

-kaht

Lisa, if you don't like your job you don't strike. You just go in every day and do it really half-assed. That's the American way. - Homer Simpson

[small]<P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <B> <P> <.</B>[/small]
 
Upvote 0 Downvote
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