function calcVoltDivide() {
  seq = parseFloat(document.fVoltDivide.seq.value);
  if (seq==96) doe96();
  if (seq==24) doe24();
}

function doe96() {
  res1 = new Array (.1,.102,.105,.107,.11,.113,.115,.118,.121,.124,.127,.13,.133,.137,.14,.143,.147,.15,.154,.158,.162,.165,.169,.174,.178,.182,.187,.191,.196,.2,.205,.21,.215,.221,.226,.232,.237,.243,.249,.255,.261,.267,.274,.28,.287,.294,.301,.309,.316,.324,.332,.34,.348,.357,.365,.374,.383,.392,.402,.412,.422,.432,.442,.453,.464,.475,.487,.499,.511,.523,.536,.549,.562,.576,.59,.604,.619,.634,.649,.665,.681,.698,.715,.732,.75,.768,.787,.806,.825,.845,.866,.887,.909,.931,.953,.976,1,1.02,1.05,1.07,1.1,1.13,1.15,1.18,1.21,1.24,1.27,1.3,1.33,1.37,1.4,1.43,1.47,1.5,1.54,1.58,1.62,1.65,1.69,1.74,1.78,1.82,1.87,1.91,1.96,2,2.05,2.1,2.15,2.21,2.26,2.32,2.37,2.43,2.49,2.55,2.61,2.67,2.74,2.8,2.87,2.94,3.01,3.09,3.16,3.24,3.32,3.4,3.48,3.57,3.65,3.74,3.83,3.92,4.02,4.12,4.22,4.32,4.42,4.53,4.64,4.75,4.87,4.99,5.11,5.23,5.36,5.49,5.62,5.76,5.9,6.04,6.19,6.34,6.49,6.65,6.81,6.98,7.15,7.32,7.5,7.68,7.87,8.06,8.25,8.45,8.66,8.87,9.09,9.31,9.53,9.76,10,10.2,10.5,10.7,11,11.3,11.5,11.8,12.1,12.4,12.7,13,13.3,13.7,14,14.3,14.7,15,15.4,15.8,16.2,16.5,16.9,17.4,17.8,18.2,18.7,19.1,19.6,20,20.5,21,21.5,22.1,22.6,23.2,23.7,24.3,24.9,25.5,26.1,26.7,27.4,28,28.7,29.4,30.1,30.9,31.6,32.4,33.2,34,34.8,35.7,36.5,37.4,38.3,39.2,40.2,41.2,42.2,43.2,44.2,45.3,46.4,47.5,48.7,49.9,51.1,52.3,53.6,54.9,56.2,57.6,59,60.4,61.9,63.4,64.9,66.5,68.1,69.8,71.5,73.2,75,76.8,78.7,80.6,82.5,84.5,86.6,88.7,90.9,93.1,95.3,97.6);
  res2 = new Array (1,1.02,1.05,1.07,1.1,1.13,1.15,1.18,1.21,1.24,1.27,1.3,1.33,1.37,1.4,1.43,1.47,1.5,1.54,1.58,1.62,1.65,1.69,1.74,1.78,1.82,1.87,1.91,1.96,2,2.05,2.1,2.15,2.21,2.26,2.32,2.37,2.43,2.49,2.55,2.61,2.67,2.74,2.8,2.87,2.94,3.01,3.09,3.16,3.24,3.32,3.4,3.48,3.57,3.65,3.74,3.83,3.92,4.02,4.12,4.22,4.32,4.42,4.53,4.64,4.75,4.87,4.99,5.11,5.23,5.36,5.49,5.62,5.76,5.9,6.04,6.19,6.34,6.49,6.65,6.81,6.98,7.15,7.32,7.5,7.68,7.87,8.06,8.25,8.45,8.66,8.87,9.09,9.31,9.53,9.76);
  e = 96
  calculate2();
  }

function doe24() {
  res1 = new Array (.1,.11,.12,.13,.15,.16,.18,.2,.22,.24,.27,.3,.33,.36,.39,.43,.47,.51,.56,.62,.68,.75,.82,.91,1.0,1.1,1.2,1.3,1.5,1.6,1.8,2.0,2.2,2.4,2.7,3.0,3.3,3.6,3.9,4.3,4.7,5.1,5.6,6.2,6.8,7.5,8.2,9.1,10,11,12,13,15,16,18,20,22,24,27,30,33,36,39,43,47,51,56,62,68,75,82,91);
  res2 = new Array (1.0,1.1,1.2,1.3,1.5,1.6,1.8,2.0,2.2,2.4,2.7,3.0,3.3,3.6,3.9,4.3,4.7,5.1,5.6,6.2,6.8,7.5,8.2,9.1);
  e = 24
  calculate2();
  }

function  calculate2() {
  clear1()
  var r_div1 = new Array (100)
  var r_div2 = new Array (100)
  var min_diff = 1
  var decade = 1
  var seed_decade = 1
  var i, j, k, l, div, diff, seed, real_div, real_div_2, error, voltageIn, output_voltage, test_ratio
  voltageIn = parseFloat(document.fVoltDivide.voltageIn.value)
  output_voltage = parseFloat(document.fVoltDivide.output_voltage.value)
  ratio = output_voltage / voltageIn
  seed = parseFloat(document.fVoltDivide.seed.value)

  for (i = 0 ; i < res1.length ; i++) {
    for (j = 0 ; j < res2.length ; j++) {
    test_ratio = res2[j] / (res1[i] + res2[j])
    diff = Math.abs(ratio - test_ratio)
    if (diff <= min_diff) min_diff = diff
    }
  }
  k = 0
  for (i = 0 ; i < res1.length ; i++) {
    for (j = 0 ; j < res2.length ; j++) {
    test_ratio = res2[j] / (res1[i] + res2[j])
    diff = Math.abs(ratio - test_ratio)
    if (diff == min_diff) {
      r_div1[k] = res1[i]
      r_div2[k] = res2[j]
      k = k + 1
      }
    }
  }
  if (r_div1[0] > 0) {
    document.fVoltDivide.r11.value = r_div1[0] * seed
    document.fVoltDivide.r21.value = r_div2[0] * seed
    }
  if (r_div1[1] > 0) {
    document.fVoltDivide.r12.value = r_div1[1] * seed
    document.fVoltDivide.r22.value = r_div2[1] * seed
    }
  if (r_div1[2] > 0) {
    document.fVoltDivide.r13.value = r_div1[2] * seed
    document.fVoltDivide.r23.value = r_div2[2] * seed
    }
  real_output = (r_div2[0] / (r_div1[0] + r_div2[0])) * voltageIn
  document.fVoltDivide.real_output.value = real_output
  error = (real_output - output_voltage) / output_voltage * 100
  document.fVoltDivide.error.value = error
}

function clear1() {
  document.fVoltDivide.r11.value = ""
  document.fVoltDivide.r12.value = ""
  document.fVoltDivide.r13.value = ""
  document.fVoltDivide.r21.value = ""
  document.fVoltDivide.r22.value = ""
  document.fVoltDivide.r23.value = ""
  document.fVoltDivide.real_output.value = ""
  document.fVoltDivide.error.value = ""
}