Pop-Up Window on page load
I need to have a pop-up window displayed when a page loads.  What's happening is this.  After an order is placed the user is redirected to their index page (main log-in page for the account)  when they are redirected to the index page, I need a pop-up window to display on the page load that says something like "Your order for $variable has been saved".  The $variable is defined on the previous page (where they are coming from) and I need that to carry over so I can display it in the pop-up box.  Then once they click on "Ok" in the pop-up box, they are at the main page like always.

I have used a java popup box before on this project, but I am unsure of how to do one with these requirements.  If there are any other/better ways to do this I am open to ideas.  The layout of how this needs to work is below:

Client is logged into their account -> Order.php Page (Place an order) -> redirected to their member-index.php page (Pop-up needs to load on page load, and only when it comes from the order.php page)

Thanks!
Pop-Up Window on page load
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I need to have a pop-up window displayed when a page loads.  What's happening is this.  After an order is placed the user is redirected to their index page (main log-in page for the account)  when they are redirected to the index page, I need a pop-up window to display on the page load that says something like "Your order for $variable has been saved".  The $variable is defined on the previous page (where they are coming from) and I need that to carry over so I can display it in the pop-up box.  Then once they click on "Ok" in the pop-up box, they are at the main page like always.

I have used a java popup box before on this project, but I am unsure of how to do one with these requirements.  If there are any other/better ways to do this I am open to ideas.  The layout of how this needs to work is below:

Client is logged into their account -> Order.php Page (Place an order) -> redirected to their member-index.php page (Pop-up needs to load on page load, and only when it comes from the order.php page)

Thanks!