need an iframe to refresh automatically

Question

I have a situation where I need to refresh an iframe about every 30 seconds. I have looked through the forums and tried a few things, to no avail.

<iframe id="Doyle" src="http://www.dot.ca.gov/dist2/rwis/sm_doyle.php" 
width="375" height="560">
</iframe>

<script>
window.setInterval("reloadIFrame();", 3000);

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

Any suggestions on how to make this work?

Answer 1

Use following code

<iframe id="Doyle" src="http://www.dot.ca.gov/dist2/rwis/sm_doyle.php" 
width="375" height="560">
</iframe>

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

function reloadIFrame() {
 var frameHolder=document.getElementById('Doyle');
frameHolder.src="http://www.dot.ca.gov/dist2/rwis/sm_doyle.php"
}
</script>

check working example below

http://plnkr.co/edit/Mre0AgMjh5o7wXl5YvVP?p=preview