var redirectTo="http://firstchoice.je";
var allowedURLs=new String("www.firstchoice.local,www.firstchoice.je,staging.firstchoice.je");
eval("var myRE = /"+top.location.hostname+"\\b/i \n"+
  "if(!myRE.test(allowedURLs)) top.location.href=redirectTo;");

function floor(number){return Math.floor(number*Math.pow(10,2))/Math.pow(10,2);}
function dosum(){
	var mi = document.mortgagecalc.INTEREST.value / 1200;
	var base = 1;
	var mbase = 1 + mi;
	for (i=0; i<document.mortgagecalc.YEAR.value * 12; i++){base = base * mbase;}
	var repayment = floor(document.mortgagecalc.LOAN.value * mi / ( 1 - (1/base)));
	if(!isNaN(repayment)) {document.mortgagecalc.PI.value = repayment;}
	else {document.mortgagecalc.PI.value = '';}
}
function dosumcheck() {
	if(document.mortgagecalc && document.mortgagecalc['PI']) {
		dosum();
	}
}
window.onload=dosumcheck;