WhereTo add new line to link Javafile? _header.html?

Hey i want a custom slide for promo. I already got it. I just want to know where to add the javascript line that links to the the javascript file. I tried _header.html but it doesn't seem to work. Please help me.

Quote · 6 Jul 2012

That is the correct file.

https://www.deanbassett.com
Quote · 6 Jul 2012
 
 
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