I juts aplyed to may web page a .js script that changes the background of the page evrry season. i have tested it into my computer and in my localhost network, and it worked, but when i uploaded ti to the web server, and tryed to see if it worked ... surprise it dident work, i have searched but i can't find the problem, can any one give me some tips were to look.
Did i made some mistakes with the code, or the web hosting company has some problems with their servers.

Pleas give me some tips, tankx