updating sessions via hidden iframes ? Good or Bad?

[jade]

Hello, I'm a js  newbie so all help is appreciated.

Suppose I had a site that sold wallets.

I would want to use some js to dynamically change the wallet type (bifold, trifold, etc) , wallet color, and possibly other variables (im not really selling wallets, just an example).

 

Currently I know how to make a call to the js function to dynamically change things based on user input.

The function also currently "saves" the user variables by writing the variables onto a link that loads into a hidden iframe. The link serves as _GET vars, and I can simply store them as session vars within the referenced page.

 

My question is if this practice is "common" and if its "good practice".

And if anyone knows of a better way to store vars via js, do tell.

 

Thanks

 

[RichardRotterdam]

you dont need a iframe to do anthing like that try looking up ajax examples all you want to do is set a server session am i right?

[jade]

Yes, I want to set, update, and show server session vars (php). 

 

Actually I am using some ajax framework found here:  http://www.robertnyman.com/ask/

The problem is , within the ajax calls, I am unable to reference, display, or alter any session data whatsoever.

 

I assumed I would be able to use ajax to run a .php page that simply had "session_start();" in it and gain access that way. But it simply does not display the session data.

 

I am a js newbie, so I may be in over my head here, but after some research, I think it has something to do with "race conditions". something like this: http://www.chipmunkninja.com/g@

and another guy with the same problem http://codeigniter.com/forums/viewthread/76343/

 

So now I just use the iframe to edit and store my session vars, but actually that still does not allow me to display  any session vars within a page being run via an ajax request.

They will only show when I reload a fresh page.