JQuery :: Reset Variables On Page Refresh?

when reloading a page containing some jquery code based variables (which are: a variety of datepickers with set dates, and a number of form textfields containing calculated and formatted monetary values) it appears that those variables remain set. If I set a variable on the page (in a form field) then refresh the page I would like for everything to be cleared out (start with a clean slate). I work around this by setting standard values to all those fields and datepickers manually, but I would rather avoid that and clear all variables/set values, rather than assigning a value to all those fields and datepickers manually to remove previous usage traces of the page. I want the refresh to behave like a full reload. I read somewhere that loading jquery with a variable at the end of the url string would achieve that. While I know how to o that, I would rather use just jquery and make sure cache / variables are cleared each time the page is loaded. My main reason for that is I'd like users to take advantagef of google APIs (so they use a cached jQuery version, for faster page loading).

an example of the page (with manual workaround in the code) can be seen at [URL] I work around the issue by using

$(function(){//clear all numbers on refresh or new pageload.
$("input.nbr").val("0,00");
});