credit calc

<!--
var a = 100000.00;
var p = 11;
var t = 12;
var pr1 = 0.12;
var min1 = 1000;
var option1 = 1;
var pr2 = 0.10;
var option2 = 2;
var min3 = 170;
var option3 = 3;

var d = 0;

function add_favorite(a) {
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      }
    }
  }
  return false;
}


function Init()
{
  document.forms.mainform["amount"].value = a.toString();
  document.forms.mainform["term"].value = t.toString();
  document.forms.mainform["percent"].value = p.toString();
  document.forms.mainform["pr1"].value = pr1.toString();
  document.forms.mainform["min1"].value = min1.toString();
  document.forms.mainform["option1"].value = option1.toString();
  document.forms.mainform["pr2"].value = pr2.toString();
  document.forms.mainform["option2"].value = option2.toString();
  document.forms.mainform["min3"].value = min3.toString();
  document.forms.mainform["option3"].value = option3.toString();

  onChangeParameter();
}


/* Made by Mathias Bynens <http://mathiasbynens.be/> */
function number_format(a, b, c, d) {
 a = Math.round(a * Math.pow(10, b)) / Math.pow(10, b);
 e = a + '';
 f = e.split('.');
 if (!f[0]) {
  f[0] = '0';
 }
 if (!f[1]) {
  f[1] = '';
 }
 if (f[1].length < b) {
  g = f[1];
  for (i=f[1].length + 1; i <= b; i++) {
   g += '0';
  }
  f[1] = g;
 }
 if(d != '' && f[0].length > 3) {
  h = f[0];
  f[0] = '';
  for(j = 3; j < h.length; j+=3) {
   i = h.slice(h.length - j, h.length - j + 3);
   f[0] = d + i +  f[0] + '';
  }
  j = h.substr(0, (h.length % 3 == 0) ? 3 : (h.length % 3));
  f[0] = j + f[0];
 }
 c = (b <= 0) ? '' : c;
 return f[0] + c + f[1];
}

function onChangeParameter()
{
 var sPay = 0
 var mPay = 0;
 var yPay = 0;
 var Pay = 0;
 var aPay = 0;
 var ePay = 0;
 var ePr = 0;
 var minV, maxV;
 var year;
 var eff = 0.0;
 var emPay, effPay = 0;

 a = Number(document.forms.mainform["amount"].value.replace(",","."));
 p = Number(document.forms.mainform["percent"].value.replace(",","."));
 t = Number(document.forms.mainform["term"].value.replace(",","."));
 d = a*p/1200/(1-Math.pow(1+p/1200,-t));

 year = ( Math.floor(t / 12) == (t / 12) ) ? t / 12 : Math.floor (t / 12) + 1;

 for(i=1;i<=5;i++)
 {
   Pay = Number(document.forms.mainform["pr"+i+""].value.replace(",",".")) * a / 100;
   minV = Number(document.forms.mainform["min"+i+""].value.replace(",","."));
   maxV = Number(document.forms.mainform["max"+i+""].value.replace(",","."));
   if (minV && Pay < minV) Pay = minV;
   if (maxV && Pay > maxV) Pay = maxV;

   switch (document.forms.mainform["option"+i+""].value)
   {
     case "1":
      sPay = sPay + Pay;
      break;
     case "2":
      mPay = mPay + Pay;
      break;
     case "3":
      yPay = yPay + Pay;
      break;
   }
  }

  aPay = sPay + (mPay + d)*t + yPay * year;
  ePay = aPay - a;
  ePr = ePay / a * 100;

  emPay = aPay / t;

  while (emPay - effPay > 0) {
   eff = eff + 0.01;
   effPay = a*eff/1200/(1-Math.pow(1+eff/1200,-t));
  }

  document.forms.mainform["singlePay"].value = number_format(sPay, 0, ".", " ");
  document.forms.mainform["comission"].value = number_format(mPay, 0, ".", " ");
  document.forms.mainform["yearPay"].value = number_format(yPay, 0, ".", " ");
  document.forms.mainform["basic"].value = number_format(d, 0, ".", " ");
  document.forms.mainform["monthPay"].value = number_format(mPay + d, 0, ".", " ");
  document.forms.mainform["allPay"].value = number_format(aPay, 0, ".", " ");
  document.forms.mainform["extraPay"].value = number_format(ePay, 0, ".", " ");
  document.forms.mainform["extraPercent"].value = number_format(ePr, 1, ".", " ");
  document.forms.mainform["comissionPercent"].value = number_format(eff, 1, ".", " ");

}


-->