Firstly, sorry if my title description is vague but it was the best I could describe my little problem.
I am creating a new web site and the background for all the pages is going to be the same. I don't want to have to add the background for each page using background properties html code.
On my last web site I had used a js file which I placed on my server together with a little code on each page which called that js file, similar to the code below:
The problem is I had gotten rid of the js code and file on the last site and I don't remember what the coding I used was (in particular the coding in the background.js file). If anyone could help me out it would be greatly appreciated.