Calling a remote page with Ajax

[tdprout]

I"m trying to replace my iframes with ajax...and it works fine thus far..as it's calling pages from my site. Problem occurs when I try to call the page for my shopping cart...which of course isn't in my local files. Is there any script which allows Ajax to call a remote page?

[shyam]

ajax calls are exclusively same domain only...you could use a server-side proxy script

[tdprout]

And you explain further about server-side proxy script and possible give a link to a tut?