Calculator

I have a simple form that runs a calculation on a web page that I would like ported to the iPhone, and possibly Android, platform. I have attached some screen shots so you can see the form as it currently stands, the interface on the phone wil need improving in terms of design as it is rather basic. The script that runs the form is below: <script language="JavaScript"> <!-- function roundit(Num, Places) { if (Places > 0) { if (([login to view URL]().length - [login to view URL]().lastIndexOf('.')) > (Places + 1)) { var Rounder = [login to view URL](10, Places); return [login to view URL](Num * Rounder) / Rounder; } else return Num; } else return [login to view URL](Num); } function SeedCalc() { form = [login to view URL]; SeedRate1="0"; SeedRate2="0"; SeedRate3="0"; PlantPopulation=[login to view URL]; TGW=[login to view URL]; Germination=100/[login to view URL]; Establishment=100/[login to view URL] seedrate1=PlantPopulation*Germination*Establishment; seedrate2=((PlantPopulation*TGW)/100)*Germination*Establishment; seedrate3=seedrate2/2.471; seedrate1=roundit(seedrate1,4); seedrate2=roundit(seedrate2,0); seedrate3=roundit(seedrate3,0); form.SeedRate1.value=seedrate1 ; form.SeedRate2.value=seedrate2 ; form.SeedRate3.value=seedrate3 ; } // --> </script>