cross platform (mac/pc) javascript help

hello, i have a an "excel" like table that is using some javascripts to do totalling calculations as well as calculating some percentages and doing some validation. the problem is that people using macintosh osx and safari browser are having trouble -- htey are not seeing totals or percentages and also it looks like the data validation is placing -0 in fields instead of just 0 - weird? i'm also having a probelm with some formatting -- i'd like to have things round off to 2 decimal places, but we're having 4 decimal places show up. i'm looking for some help debugging or replacing the javascripts. ************ PLEASE NOTE ************ after unzipping the files place the [login to view URL] file outside the javascript_files folder. thanks, mark ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform macintosh osX with safari browser and windows 2000/xp with IE or mozilla