<!--//
function img_over(imgName) {
var pic = "bot"
if(document.images) {
	document[imgName].src = eval(imgName + "2.src");
	if(imgName=="lrn") {
		document[pic].src = bot1.src;
	}
	if(imgName=="chs") {
		document[pic].src = bot2.src;
	}
	if(imgName=="act") {
		document[pic].src = bot3.src;
	}
}
}

function img_not(imgName) {
var pic = "bot"
if(document.images){
	document[imgName].src = eval(imgName + "1.src");
	document[pic].src = bot0.src;
	}
}

function st_pct(rate) {
	var newnum, ch
	newnum = "";
	for (var i=0; i<rate.length; i++) {
		ch = rate.charAt(i);
		if(ch != "%") {
			newnum += ch;
		}
	}
	return parseFloat(newnum);
}

function fmt_pmt(input) {
	var res, len;
	input += "";
	len = input.indexOf(".");
	if(len == -1) {
		len = input.length;
		res = "";
	}
	else {	 
		res = input.substring(len, input.length);
	}
	while(len > 3) {
		res = input.substring(len-3, len) + res;
		res = "," + res;
		len -= 3;
	}

	res = input.substring(0, len) + res;
	len = res.indexOf(".");
	if(len>0) {
		res = res.substring(0, len+3);
	}
	else {
		res = res + ".00"
	}
	return res;
}

function fixln(price) {
	var newnum, ch
	newnum = "";
	for (var i=0; i<price.length; i++) {
		ch = price.charAt(i);
		if((ch >= "0") && (ch <= "9") || (ch==".")) {
			newnum += ch;
		}
	}	
	if(newnum.length == 0) {
		newnum = 0;
	}
	document.afi_default.AMT1.value = newnum;
	return newnum;
	}

function calc_pmt() {

	var prin, morate, mopmt1, mopmt2, numpmts, rtls201, rtbr201, sv201;
	var rtls251, rtbr251, sv251, rtls301, rtbr301, sv301, rtls222, rtbr222, sv222;
	var t_201, t_301, t_222
	prin = fixln(document.afi_default.AMT1.value);
	numpmts = 360;
	rtls201 = document.afi_default.ls_201.value;
		morate = st_pct(rtls201)/1200;
		mopmt1 = Math.floor((prin*morate)/(1-Math.pow((1+morate),(-1*numpmts)))*100)/100;
	rtbr201 = document.afi_default.br_201.value;
		morate = st_pct(rtbr201)/1200;
		mopmt2 = Math.floor((prin*morate)/(1-Math.pow((1+morate),(-1*numpmts)))*100)/100;
	sv201 = mopmt2 - mopmt1
	t_201 = sv201 * numpmts
	document.afi_default.sv_201.value = "$" + fmt_pmt(sv201);
	document.afi_default.ts_201.value = "$" + fmt_pmt(t_201);
	document.afi_default.pmt_ls.value = "$" + fmt_pmt(mopmt1);
	document.afi_default.pmt_br.value = "$" + fmt_pmt(mopmt2);
}

function ckval() {
	if(document.afi_default.AMT1.value != "") {
		calc_pmt();
	}
	if(document.afi_default.AMT1.value == "") {
		document.afi_default.AMT1.focus()
	}
		
}
// end of script-->