Web Forms :: Error In Production Environment When Dynamically Generating Script Code

I am dynamically generating script code to return transaction data to Google Analytics using their ecommerce script. The code that generates the script is fully tested and functional on my development machine and when I view the page code the script, along with any values that were passed to it, can be seen above the </form> tag. Happy days, or so I thought. For some reason the code is not being generated when I test it in a live, hosted environment. I cant figure out why this is the case as the code is quite simple. I simply generate the script code and register it on the client side (see code below)

//Capture the transaction data for analytics ecommerce tracking
//Generate the necessary script code
string strAnalyticsEcommerceScript = Analytics_Ecommerce_Script_Creator();
//Register the script on the page
Page.ClientScript.RegisterStartupScript(this.GetType(), "AnalyticsScript", strAnalyticsEcommerceScript);

The page in question is called "Order-Successfull" and is where customers are sent to when they have succesfully payed for an order. On this page:

-The order is added to the orders database table
- The customer is emailed an order confirmation email
- The google analytics script is generated and registered

The Sequence is as follows:

[Code]....

Whats really interesting is that if I move the Analytics script creator code before the code that sends the emails, the script is generated and can be seen when I view the page code. If I do this, however, the emails do not get sent. If I lay the code out as per the code I have inserted in this post, the emails get sent but the script code is not placed on the page.. The code to that actually sends the emails is quite standard:

[Code]....