how do I fix 404 errors on js files

I just checked my sites webstats and I keep showing 404 errors for 5 specific js files. I am using the lowstream theme, and the js files showing as 404 ewrrors are /builder.js; /effects.js; /controls.js; /dragdrop.js and /slider.js

The exact 404 report stat says ‘Required but not found URLs’ and the URL named (just the first of the five as the example) is this:

/lowstream-208-second-edition/js/http://ourriveroflife.ca/WordPress/
wp-content/themes/lowstream-208-second-edition/js/builder.js

I checked the js folder in the theme package and it only has files called effects.js; objects.js; prototype.js and scriptaculous.js

I am not sure that I understand the problem. It’s obvious to me that the reason for the 404 errors is that there are no files by those names in this theme (excepting effects.js) but then, why are they being called up? What are they?

Could someone explain to me what the problem is and why, and how I would go about fixing it? Thank you