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Is there a way to determine whether an external javascript file has already been loaded/included?

Hi:

I'm still in the figuring out stages of webpages, html and javascript.

I've got a base page (which includes external javascript files).
During the course of running the webpage, I'm inserting external
HTML pages into divs. Those external pages themselves include references
to external javascript files.

Is there a way to determine whether an external javascript file has been already
loaded before I attempt to load it?

Thanks,
JohnB
0
jxbma
Asked:
jxbma
1 Solution
 
leakim971PluritechnicianCommented:
if( typeof [i]name_of_a_function_or_variable_inside_this_external_javascript_file[/i] == "undefined") {

// load it

};

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