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Interest Calculator.sd
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INI File
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2006-09-13
|
5KB
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161 lines
[SUBJECT]
Description=Calculate monthly interest payment
ImageIndex=-1
Folder=Mathematics
[HEAD_TEXT]
;<!-- Cut-N-Paste JavaScript from ISN Toolbox
; Copyright 1996, Infohiway, Inc. Restricted use is hereby
; granted (commercial and personal OK) so long as this code
; is not *directly* sold and the copyright notice is buried
; somewhere deep in your HTML document. A link to our site
; http://www.infohiway.com is always appreciated of course,
; but is absolutely and positively not necessary. ;-) -->
;<script language="JavaScript">
;<!--Hide JavaScript from Java-Impaired Browsers
;function test_it(entry) {
; if (entry.value && entry.value.length!=0) {
; entry.value=""+ eval(entry.value);
; }
; computeForm(entry.form);
; }
;
;function computeForm(form) {
; if ((!form.months.value || form.months.value.length==0) ||
; (!form.rate.value || form.rate.value.length==0) ||
; (!form.financed.value || form.financed.value.length==0)) {
; return;
; }
; if (!alrt_msg(form.months,1,480,"Your Number of Payments") ||
; !alrt_msg(form.rate,.001,99,"Your Interest Rate") ||
; !alrt_msg(form.financed,100,10000000,"Your Principal Amount")) {
; form.payment.value="A value out of range - Click Reset";
; return;
; }
; var i=form.rate.value;
; ffv=0;
; ffv+=form.financed.value;
; fmv=0;
; fmv+=form.months.value;
; if (i > 1.0) {
; // Hack to mostly correct floating point/binary conversion error
; i=(i/100.0)+.00001;
; var fmt="";
; fmt+=i;
; fmt=fmt.substring(0,6);
; form.rate.value=fmt;
; }
; i/=12;
; var isn=1;
; for (var j=0;j<form.months.value;j++)
; isn=isn*(1+i);
; form.payment.value=(form.financed.value*isn*i)/(isn-1);
; fpv=0;
; fpv+=form.payment.value;
; fmt="";
; var add=9;
; fmt+=form.payment.value;
; for (var i=0;i<fmt.length;i++) {
; if (fmt.charAt(i)==".") {
; add=i+3;
; i=fmt.length;
; }
; }
; fmt=fmt.substring(0,add);
; fcalc=((fmv*fpv)-ffv);
; var fmtb="";
; add=9;
; fmtb+=fcalc;
; for (var i=0;i<fmtb.length;i++) {
; if (fmtb.charAt(i)==".") {
; add=i+3;
; i=fmtb.length;
; }
; }
; fmtb=fmtb.substring(0,add);
; form.payment.value=" $"+fmt+" $"+fmtb;
; }
;function reset_it(form) {
; form.months.value="";
; form.rate.value="";
; form.financed.value="";
; form.payment.value="";
; }
;
;function alrt_msg(entry,low,high,myprompt) {
; myprompt="You couldn't know. "+myprompt
; +" entry has unacceptable stuff: "+entry.value;
; var scratch=entry.value;
; for (var i=0;i<scratch.length;i++) {
; var letter=scratch.substring(i,i+1);
; if ((letter<"0" || "9"<letter) && letter!='.') {
; alert(myprompt);
; return false;
; }
; }
; var errtst=parseFloat(scratch);
; if (errtst<low || high<errtst) {
; alert("I'm sorry. "+myprompt+ " is not in the range"
; +" from "+low+" to "+high+"!");
; return false;
; }
; entry.value=scratch;
; return true;
; }
;//-->
;</SCRIPT>
[BODY_TEXT]
;<div align="center">
;<table width="484" border="2" summary="">
;<tr><td colspan="3"><br>
;If you have a Netscape« 2.0 Browser, you can use this handy
;tool to learn just how much your monthly payment will be for a new
;computer, a big screen TV or even a new house!
;<p>All you do is type the amount it will cost, what the interest
;rate will be and how many months your loan will be for. "Click"
;Compute or simply click in the payment window to see how much it
;will cost each month.<p></td></tr>
;</table>
;<form method="post">
;<table width="484" border="2" summary="">
;<tr>
;<td colspan="3" valign="top" align="center">
; <b>`Caption`</b></td>
;<td valign="top" align="center"><b>See Your Payment Here</b></td>
;<td valign="top" align="center"><B>See Your Interest Cost Here</b></td></tr>
;<tr>
;<td align="center">Number of<BR>Monthly<br>Payments</td>
;<td align="center">Simple<br>Interest<br>Rate</td>
;<td align="center">Principal<br>Amount<br>of Loan</td>
;<td align="center">Your<br>Monthly<br>Payment<br>Will Be</td>
;<td align="center">Your<br>Total<br>Interest Cost<br>Will Be</td>
;</tr>
;<tr>
;<td align="center">
; <input type="text" name="months" SIZE="5" onChange="test_it(this)"> </td>
;<td align="center">
; <input type="text" name="rate" SIZE="6" onChange="test_it(this)"></td>
;<td align="center">
; $<input type="text" name="financed" SIZE="9" onChange="test_it(this)"></td>
;<td colspan="2" align="center">
; <input type="text" name="payment" SIZE="40" onChange="test_it(this)"></td></tr>
;<tr>
;<td colspan="2" align="center">
; <input type="reset" VALUE="Click Here to Reset" onClick="reset_it(this.form)"></td>
;<td colspan="3" align="center">
; <input type="button" value="Click Here to Compute Payment and Cost" onClick="computeForm(this.form)"></td>
;</tr>
;</table>
;</FORM>
;</div>
[`Caption`]
Kind=S
Value=Simply Complete These Three Columns: