Having to refresh my page a few times

[Asheh]

I have a clickable image which calls a javascript functon which inturn, calls some GET stuff on a different page.

 

My problem is it only works half the time, i think its to do with the sessions. Sometimes I have to click several times before the page changes to what i want, its very strange.

 

Im sure somone has come across this before?

Ash.

[Asheh]

Infact this actually only happens in FIREFOX, and not in IE. Whats the deal with this!?

 

There must be a nice fix somewhere?

 

Regards

Ash.e

[joshi_v]

Well!

 

The page you are trying to call is in the same folder or in another? check all the variables  in the url by displaying the url as  alert message before it is going to another page.

 

if possible post your piece of code here.

 

Regards

Joshi.

 

[Asheh]

I looked into this.

 

I believe its somthing to do with the caching of the image, which is a real pain the arse! Ive tried sending some headers to stop this but its still not fixing anything, i still have to click once, twice or even 3 times before it refreshes properly.. (i believe this might be time based..)

 

Anyway heres the page, click the images on the second column in IE then try firefox, notice the difference?

http://www.nngb-evaluation.co.uk/acrylic_new/

 

Is it the caching thats causing this? cause' headers dont seem to be fixing it!

 

Help!!

[DeathStar]

I have a clickable image which calls a javascript functon which inturn, calls some GET stuff on a different page.

My problem is it only works half the time, i think its to do with the sessions. Sometimes I have to click several times before the page changes to what i want, its very strange.

Im sure somone has come across this before?
Ash.

 

Post your code here.

and Asheh, it doesnt happen to me and i have the latest FF, have been using it for 2-3 years now

[DeathStar]

Oh yes.

And i noticed that the image refreshes 2 times, not only once.

First refresh the image has apeared.

Second refresh the image refreshes.

What with that?

[Asheh]

Below is the code to call the javascript:

 

			<a href="#" onClick="postToIframe('<?=$_SESSION['plate']?>','<?=$_SESSION['custom_text']?>', '<?=$_SESSION['base']?>', '<?=$_SESSION['badge']?>', '<?=$file_list[$i]?>','<?=$_SESSION['ghost']?>');">
			<img src="image_library/borders/thumbs/<?=$thumb_loc?>" border="0" alt="<?=$folder_list[$i]?>">
			</a>

 

here is the javascript:

 

<script language="javascript">
function postToIframe(plate, custtext, base, badge, border, ghost)
{
   var URL = 'drawplate_iframe.php?';
   URL = URL + '&plate=' + plate;
   URL = URL + '&custom_text=' + custtext;
   URL = URL + '&badge=' + badge;
   URL = URL + '&border=' + border;
   URL = URL + '&ghost=' + ghost;

   parent.frames.plate_display.location.href = URL;
   parent.frames.plate_display.location.reload();
}
</script>

 

 

Here is the code which should expire the headers:

 

<?php
header("ETag: PUB" . time());
header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()-10) . " GMT");
header("Expires: " . gmdate("D, d M Y H:i:s", time() - 5) . " GMT");
header("Pragma: no-cache");
header("Cache-Control: max-age=1, s-maxage=1, no-cache, must-revalidate");
session_cache_limiter("nocache");

session_start();

[Greaser9780]

If that doesn't work there is another solution. Add this to the url in the java part:

URL = URL + "&sid=" + Math.random()

This sets a random number for the cache so it is different everytime.

 

[Asheh]

Its getting wierder!

 

http://www.nngb-evaluation.co.uk/acrylic_new/

 

On firefox, the image doesnt even display at all now!

 

Help?!

[Greaser9780]

Since you already have it in firefox use the error checker. It will tell you what is wrong.

[mjlogan]

http://www.nngb-evaluation.co.uk/acrylic_new/drawplate_iframe.php?&plate=NNGB&custom_text=NationalNumbers.Co.Uk&badge=none&border=green_normal.png&ghost=none

 

shows up blank to me in firefox and IE7 gives the red cross

[DeathStar]

hmm...

Try checking the errors.

mjlogan it shows up for me(the submit) not the image

[Asheh]

Ok that was just a silly error i made :-) but you can still see that clicking the borders wont change the eventual image? some sort of cacheing is going on? ??? ??? ???

 

I have tried changing the URL with math.random(), im setting the caching headers etc.

 

What else could it be?

[Greaser9780]

It does change the color of the border though.

[Asheh]

IT does for you?? on firefox???

 

What! howcome it doesnt for me?

[mjlogan]

kinda works for me in FF 2.0.3 just have to click it a few times.