An Iframe I need to refresh every 30 seconds (but not the whole page)

Question

I have this bit of code

<iframe marginwidth="0" marginheight="0" width="240" height="80" scrolling="no" frameborder=0 src="irc_online.php">
</iframe>

I am adding this to a html widget I have on a sidebar, Is there a way I can make this refresh say every 30 seconds and not the rest of my page?

Answer 1

You can put a meta refresh Tag in the irc_online.php

<meta http-equiv="refresh" content="30">

OR you can use Javascript with setInterval to refresh the src of the Source...

<script>
window.setInterval("reloadIFrame();", 30000);

function reloadIFrame() {
 document.frames["frameNameHere"].location.reload();
}
</script>

Answer 2

Let's assume that your iframe id= myIframe

here is the code:

<script>
window.setInterval("reloadIFrame();", 30000);
function reloadIFrame() {
 document.getElementById("myIframe").src="YOUR_PAGE_URL_HERE";
}
</script>

Answer 3

Okay... so i know that i'm answering to a decade question, but wanted to add something! I wanted to add a google calendar with special iframe parameters. Problem is that the calendar didn't work without it. 30 seconds is a bit short for my use, so i changed that in my own file to 15 minutes This worked for me.

<script>
window.setInterval("reloadIFrame();", 30000);
function reloadIFrame() {
 document.getElementById("calendar").src=calendar.src;
}
</script>

    <iframe id="calendar" src="[URL]" style="border-width:0" width=100% height=100% frameborder="0" scrolling="no"></iframe>