//  JavaScript: More Forms, Example 2
//  Calculates Loan Repayment Amounts
//
//  Copyright (c) Paul Griffiths, 2007
//  Email: mail@paulgriffiths.net

function loanRepay(form) {
  var p = form.principal.value;
  var m = form.maturity.value;
  
  var per = 0;
  switch (m) {
  	case "25":
  		per =  47.82;
  		break;
  	case "37":
  		per = 33.69;
  		break;
  	case "49":
  		per = 26.51;
  		break;
  	case "61":
  		per = 22.18;
  		break;
  }
	var r = Math.round(( (per/1000)*p)*100)/100;
  	form.repay.value = r;
}