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See Advanced Courses NAH, I know EnoughIncluding external javascript files in drupal 6
In D7, drupal_add_js can handle external javascript files, but in D6 it cannot handle external js in a nice way.
Most people instead include external js with a preprocess_page function, or hook_footer. However, in both cases, the external js is added before the scripts added by drupal_add_js (the $scripts page template variable) which can be a performance problem.
I've seen one kind of nasty workaround that (ab)uses drupal_add_js to make a call to document.write:
http://www.wootenswebdesign.com/load-external-js-file-drupal-6
Here's another technique to include an external script with drupal_add_js in Drupal 6 that I find a little more readable.
Create a local js file (in your module or theme) and include that with drupal_add_js:
drupal_add_js(drupal_get_path('module', 'my_module') . '/my_module.js', 'module');
In your local js file, create a new script element and append it to the body:
(function ($) { Drupal.behaviors.myModule = function(context) { var externalScript = $('<script></script>').attr('type','text/javascript').attr('src', 'http://example.org/example.js'); $('body').append(externalScript); } }(jQuery));
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