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Disable page refresh javascript on click

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countdrak

countdrak

Programmer
Jun 20, 2003
358
US
I have a javascript that refreshes my page every 45 seconds. I want to disable the page refresh if the user is filling a form on the page.

Otherwise in IE i lose all data. I want the user to be able to enable the javascript again. Is this possible?

A button that could be clicked to disable the refresh and then enable it again.


Here is my javascript code

Code: 
<script>
<!--

//enter refresh time in "minutes:seconds" Minutes should range from 0 to inifinity. Seconds should range from 0 to 59
var limit="0:45"

if (document.images){
var parselimit=limit.split(":")
parselimit=parselimit[0]*60+parselimit[1]*1
}
function beginrefresh(){
if (!document.images)
return
if (parselimit==1)
window.location.reload()
else{ 
parselimit-=1
curmin=Math.floor(parselimit/60)
cursec=parselimit%60
if (curmin!=0)
curtime=curmin+" minutes and "+cursec+" seconds left until page refresh!"
else
curtime=cursec+" seconds left until page refresh!"
window.status=curtime
setTimeout("beginrefresh()",1000)
}
}

window.onload=beginrefresh

</script>
 
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How will you know if a user is filling out the form on the page?

You can check by seeing if any form fields are containing non default values, but there could be a better way, and I don't have enough info to know if there is.

[monkey][snake] <.
 
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I dont want to know if they are filling out a form. If they click a button it disables the refresh.

So before they start filling out the form they will click the button to disable the refresh.
 
Upvote 0 Downvote
Hi

Code: 
[gray]...[/gray]

window.status=curtime
[red]var refreshTimer=[/red]setTimeout("beginrefresh()",1000)
}
}

window.onload=beginrefresh

</script>
</head>
<body>
<form action="#">
<input type="button" value="Start" onclick="[red]beginrefresh()[/red]">
<input type="button" value="Stop" onclick="[red]clearTimeout(refreshTimer)[/red]">
</form>

[gray]...[/gray]

Feherke.
 
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Got ya.

You probably need to do this, since you can have a setTimeout going when the disable button is clicked

Make a global variable (disableRefresh).
On the click of a button, make toggle the value of disableRefresh (true/false)

Check in beginrefresh for the value of disableRefresh.

Code: 
var disableRefresh = false;

function beginrefresh(){
[!]if (!disableRefresh) {[/!]
   if (!document.images)
      return
   if (parselimit==1)
      window.location.reload()
   else{ 
      parselimit-=1
      curmin=Math.floor(parselimit/60)
      cursec=parselimit%60
      if (curmin!=0)
         curtime=curmin+" minutes and "+cursec+" seconds left until page refresh!"
      else
         curtime=cursec+" seconds left until page refresh!"
      window.status=curtime
      setTimeout("beginrefresh()",1000)
   }
[!]}[/!]
}


//HTML
<input type="button" value="Disable Auto-Refresh" onclick="disableRefresh = !disableRefresh" />


[monkey][snake] <.
 
Upvote 0 Downvote
Thanks.

But I keep getting this error - refreshTimer is not defined

I know the var is defined.

Am I doing something wrong?
 
Upvote 0 Downvote
If you're defining it with var inside the function, that variable won't exist outside the function.

[monkey][snake] <.
 
Upvote 0 Downvote
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