Why is Jquery not working on HTML Page

I made my HTML Page on a FM Test site of mine ( link removed ) and everything is working fine.
Now i copied the code and pasted in in a new HTML Page for the proper Website that it was made for. ( link removed )
And all of a sudden the Jquery stopped working. Why is that??

Any help is much appreciated.

jQuery will only be present in HTML pages if you have the header and footer enabled. If you don't then you need to add jQuery to the source of the HTML page so it can be used.

But the Jquery is working in the test page and I didn't use the Header and Footer enabled option in that one either.

Then you must have included without realising. Probably in a code you added.

JQuery will not work, if jQuery is not present in the page. A browser does not understand jQuery.

Solved it now, the browser changed the Jquery code when copy/pasting, the stupid thing, anyways. Thanks for the time and this can be locked now.