I would like to load an external file using javascript. I'm planning to add ad codes in the external file and include it using javascript wherever necessary. This will help me to change ad codes easily when the need arises.
Also I believe various third party solutions such as Google Admanager are complex and unnecessary. So I need your suggestion for the same.
Note : The external file may contain PHP / Javascript source.
What I thought was to add something like this ...
document.write("<script type='text/javascript' src='ad1.js'></script>");
What's your opinion ?
Correct me if I'm wrong, but it sounds like you want to display ad codes separate from the content of the page (such as in iframes). Most ad providers don't like this, since the ads displayed won't be relevant to site content.
Another way to do it however (that makes everyone happy) is to use php's include statement and include the external file. This will dump the contents of the page into the current page, so make sure you don't have multiple <html> elements or inaccurate paths.