// JavaScript Document var num_digit = 10 // numero de digitos a mostrar var num_elem_long = 10 // numero total de equivalencias (campos) var num_elem_peso = 6 // numero total de equivalencias (campos) var num_elem_sup = 8 // numero total de equivalencias (campos) var num_elem_vol = 10 // numero total de equivalencias (campos) var num_elem_temp = 2 // numero total de equivalencias (campos) function formatvalue(input, rsize) { var invalid = "**************************"; var nines = "999999999999999999999999"; var strin = "" + input; var fltin = parseFloat(strin); if (strin.indexOf("e") != -1){ return invalid.substring(0, rsize); } if (strin.length <= rsize){ return strin; } if (strin.indexOf("e") != -1 || fltin > parseFloat(nines.substring(0,rsize)+".4")){ return invalid.substring(0, rsize); } var rounded = "" + (fltin + (fltin - parseFloat(strin.substring(0, rsize))));return parseFloat(rounded.substring(0, rsize));} function clearform(form, element) {for (var i = 1; i <= element; i++) {form[i].value = "";}return true;} function convertform_l(form, element){var firstvalue = 0; for (var i = 1; i <= element; i++) { if (form.elements[i].value != null && form.elements[i].value.length != 0) { if (form.elements[1].value != "" && form.elements[num_elem_long-1].value != "") return false; v_element = i; firstvalue = form.elements[i].value; break; } } if (firstvalue == 0) { clearform(form, element); return false; } if(isNaN(firstvalue)){alert("Entrada inválida");return;} if (v_element == 1){ form.elements[2].value = formatvalue((firstvalue * 0.1), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.01), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.001), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.000001), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.0393700787), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.0032808399), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.0010936133), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.0000006214), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0000005399), num_digit); }else if (v_element == 2){ form.elements[1].value = formatvalue((firstvalue * 10), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.1), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.01), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.00001), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.3937007874), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.0328083989), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.0109361330), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.0000062137), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0000053996), num_digit); }else if (v_element == 3){ form.elements[1].value = formatvalue((firstvalue * 100), num_digit); form.elements[2].value = formatvalue((firstvalue * 10), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.1), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.0001), num_digit); form.elements[6].value = formatvalue((firstvalue * 3.9370078740), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.3280839895), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.1093613298), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.0000621371), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0000539957), num_digit); }else if (v_element == 4){ form.elements[1].value = formatvalue((firstvalue * 1000), num_digit); form.elements[2].value = formatvalue((firstvalue * 100), num_digit); form.elements[3].value = formatvalue((firstvalue * 10), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.001), num_digit); form.elements[6].value = formatvalue((firstvalue * 39.3700787402), num_digit); form.elements[7].value = formatvalue((firstvalue * 3.280839895), num_digit); form.elements[8].value = formatvalue((firstvalue * 1.0936132983), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.0006213712), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0005399568), num_digit); }else if (v_element == 5){ form.elements[1].value = formatvalue((firstvalue * 1000000), num_digit); form.elements[2].value = formatvalue((firstvalue * 100000), num_digit); form.elements[3].value = formatvalue((firstvalue * 10000), num_digit); form.elements[4].value = formatvalue((firstvalue * 1000), num_digit); form.elements[6].value = formatvalue((firstvalue * 39370.0787401575), num_digit); form.elements[7].value = formatvalue((firstvalue * 3280.8398950131), num_digit); form.elements[8].value = formatvalue((firstvalue * 1093.6132983377), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.6213711922), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.5399568035), num_digit); }else if (v_element == 6){ form.elements[1].value = formatvalue((firstvalue * 25.4), num_digit); form.elements[2].value = formatvalue((firstvalue * 2.54), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.254), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.0254), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.0000254), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.0833333333), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.0277777778), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.0000157828), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0000137149), num_digit); }else if (v_element == 7){ form.elements[1].value = formatvalue((firstvalue * 304.8), num_digit); form.elements[2].value = formatvalue((firstvalue * 30.48), num_digit); form.elements[3].value = formatvalue((firstvalue * 3.048), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.3048), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.0003048), num_digit); form.elements[6].value = formatvalue((firstvalue * 12), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.3333333333), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.0001893939), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0001645788), num_digit); }else if (v_element == 8){ form.elements[1].value = formatvalue((firstvalue * 914.4), num_digit); form.elements[2].value = formatvalue((firstvalue * 91.44), num_digit); form.elements[3].value = formatvalue((firstvalue * 9.144), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.9144), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.0009144), num_digit); form.elements[6].value = formatvalue((firstvalue * 36), num_digit); form.elements[7].value = formatvalue((firstvalue * 3), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.0005681818), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0004937365), num_digit); }else if (v_element == 9){ form.elements[1].value = formatvalue((firstvalue * 1609344), num_digit); form.elements[2].value = formatvalue((firstvalue * 160934.4), num_digit); form.elements[3].value = formatvalue((firstvalue * 16093.44), num_digit); form.elements[4].value = formatvalue((firstvalue * 1609.344), num_digit); form.elements[5].value = formatvalue((firstvalue * 1.609344), num_digit); form.elements[6].value = formatvalue((firstvalue * 63360), num_digit); form.elements[7].value = formatvalue((firstvalue * 5280), num_digit); form.elements[8].value = formatvalue((firstvalue * 1760), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.8689762419), num_digit); }else if (v_element == 10){ form.elements[1].value = formatvalue((firstvalue * 1852000), num_digit); form.elements[2].value = formatvalue((firstvalue * 185200), num_digit); form.elements[3].value = formatvalue((firstvalue * 18520), num_digit); form.elements[4].value = formatvalue((firstvalue * 1852), num_digit); form.elements[5].value = formatvalue((firstvalue * 1.852), num_digit); form.elements[6].value = formatvalue((firstvalue * 72913.3858267717), num_digit); form.elements[7].value = formatvalue((firstvalue * 6076.1154855643), num_digit); form.elements[8].value = formatvalue((firstvalue * 2025.3718285214), num_digit); form.elements[9].value = formatvalue((firstvalue * 1.150779448), num_digit); } } function convertform_s(form, element){ var firstvalue = 0; for (var i = 1; i <= element; i++) { if (form.elements[i].value != null && form.elements[i].value.length != 0) { if (form.elements[1].value != "" && form.elements[num_elem_sup-1].value != "") return false; v_element = i; firstvalue = form.elements[i].value; break; } } if (firstvalue == 0) { clearform(form, element); return false; } if(isNaN(firstvalue)){alert("Entrada inválida");return;} if (v_element == 1){ form.elements[2].value = formatvalue((firstvalue * 0.01), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.0001), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.000001), num_digit); form.elements[5].value = formatvalue((firstvalue * 10.76391042), num_digit); form.elements[6].value = formatvalue((firstvalue * 1.195990046), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.000247105), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.000000386), num_digit); }else if (v_element == 2){ form.elements[1].value = formatvalue((firstvalue * 100), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.01), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.0001), num_digit); form.elements[5].value = formatvalue((firstvalue * 1076.391042), num_digit); form.elements[6].value = formatvalue((firstvalue * 119.5990046), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.0247105), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.0000386102), num_digit); }else if (v_element == 3){ form.elements[1].value = formatvalue((firstvalue * 10000), num_digit); form.elements[2].value = formatvalue((firstvalue * 100), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.01), num_digit); form.elements[5].value = formatvalue((firstvalue * 107639.1042), num_digit); form.elements[6].value = formatvalue((firstvalue * 11959.90046), num_digit); form.elements[7].value = formatvalue((firstvalue * 2.47105), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.0038610215), num_digit); }else if (v_element == 4){ form.elements[1].value = formatvalue((firstvalue * 1000000), num_digit); form.elements[2].value = formatvalue((firstvalue * 10000), num_digit); form.elements[3].value = formatvalue((firstvalue * 100), num_digit); form.elements[5].value = formatvalue((firstvalue * 10763910.42), num_digit); form.elements[6].value = formatvalue((firstvalue * 1195990.046), num_digit); form.elements[7].value = formatvalue((firstvalue * 247.105), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.386102159), num_digit); }else if (v_element == 5){ form.elements[1].value = formatvalue((firstvalue * 0.09290304), num_digit); form.elements[2].value = formatvalue((firstvalue * 0.0009290304), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.0000092903), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.0000000929), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.111111111), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.00002293578), num_digit); form.elements[8].value = formatvalue((firstvalue * 0), num_digit); }else if (v_element == 6){ form.elements[1].value = formatvalue((firstvalue * 0.83612736), num_digit); form.elements[2].value = formatvalue((firstvalue * 0.0083612736), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.0000836127), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.0000008361), num_digit); form.elements[5].value = formatvalue((firstvalue * 9), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.00020661157), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.00000032283), num_digit); }else if (v_element == 7){ form.elements[1].value = formatvalue((firstvalue * 4046.8564224), num_digit); form.elements[2].value = formatvalue((firstvalue * 40.468564224), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.40468564224), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.00404685642), num_digit); form.elements[5].value = formatvalue((firstvalue * 43560 ), num_digit); form.elements[6].value = formatvalue((firstvalue * 4840), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.0015625), num_digit); }else if (v_element == 8){ form.elements[1].value = formatvalue((firstvalue * 2589988.11034), num_digit); form.elements[2].value = formatvalue((firstvalue * 25899.8811034), num_digit); form.elements[3].value = formatvalue((firstvalue * 258.998811034), num_digit); form.elements[4].value = formatvalue((firstvalue * 2.58998811034), num_digit); form.elements[5].value = formatvalue((firstvalue * 27878400), num_digit); form.elements[6].value = formatvalue((firstvalue * 3097600), num_digit); form.elements[7].value = formatvalue((firstvalue * 640), num_digit);}} function convertform_v(form, element){ var firstvalue = 0; for (var i = 1; i <= element; i++) { if (form.elements[i].value != null && form.elements[i].value.length != 0) { if (form.elements[1].value != "" && form.elements[num_elem_vol-1].value != "") return false; v_element = i; firstvalue = form.elements[i].value; break; } } if (firstvalue == 0) { clearform(form, element); return false; } if(isNaN(firstvalue)){alert("Entrada inválida");return;} if (v_element == 1){ form.elements[2].value = formatvalue((firstvalue * 0.1), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.01), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.001), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.000001), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.270512182), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.033814023), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.002113376), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.001056688), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.000264172), num_digit); }else if (v_element == 2){ form.elements[1].value = formatvalue((firstvalue * 10), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.1), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.01), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.00001), num_digit); form.elements[6].value = formatvalue((firstvalue * 2.70512182), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.33814023), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.02113376), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.01056688), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.00264172), num_digit); }else if (v_element == 3){ form.elements[1].value = formatvalue((firstvalue * 100), num_digit); form.elements[2].value = formatvalue((firstvalue * 10), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.1), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.0001), num_digit); form.elements[6].value = formatvalue((firstvalue * 27.0512182), num_digit); form.elements[7].value = formatvalue((firstvalue * 3.3814023), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.2113376), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.1056688), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0264172), num_digit); }else if (v_element == 4){ form.elements[1].value = formatvalue((firstvalue * 1000), num_digit); form.elements[2].value = formatvalue((firstvalue * 100), num_digit); form.elements[3].value = formatvalue((firstvalue * 10), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.001), num_digit); form.elements[6].value = formatvalue((firstvalue * 270.512182), num_digit); form.elements[7].value = formatvalue((firstvalue * 33.814023), num_digit); form.elements[8].value = formatvalue((firstvalue * 2.113376), num_digit); form.elements[9].value = formatvalue((firstvalue * 1.056688), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.264172), num_digit); }else if (v_element == 5){ form.elements[1].value = formatvalue((firstvalue * 1000000), num_digit); form.elements[2].value = formatvalue((firstvalue * 100000), num_digit); form.elements[3].value = formatvalue((firstvalue * 10000), num_digit); form.elements[4].value = formatvalue((firstvalue * 1000), num_digit); form.elements[6].value = formatvalue((firstvalue * 270512.182), num_digit); form.elements[7].value = formatvalue((firstvalue * 33814.023), num_digit); form.elements[8].value = formatvalue((firstvalue * 2113.376), num_digit); form.elements[9].value = formatvalue((firstvalue * 1056.688), num_digit); form.elements[10].value = formatvalue((firstvalue * 264.172), num_digit); }else if (v_element == 6){ form.elements[1].value = formatvalue((firstvalue * 3.69669119531), num_digit); form.elements[2].value = formatvalue((firstvalue * 0.369669119531), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.0369669119531), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.00369669119531), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.00000369669119531), num_digit); form.elements[7].value = formatvalue((firstvalue * 0.125), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.0078125), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.00390625), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.000976563), num_digit); }else if (v_element == 7){ form.elements[1].value = formatvalue((firstvalue * 29.5735295625), num_digit); form.elements[2].value = formatvalue((firstvalue * 2.95735295625), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.295735295625), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.0295735295625), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.0000295735295625), num_digit); form.elements[6].value = formatvalue((firstvalue * 8), num_digit); form.elements[8].value = formatvalue((firstvalue * 0.0625), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.03125), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.0078125), num_digit); }else if (v_element == 8){ form.elements[1].value = formatvalue((firstvalue * 473.176473), num_digit); form.elements[2].value = formatvalue((firstvalue * 47.3176473), num_digit); form.elements[3].value = formatvalue((firstvalue * 4.73176473), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.473176473), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.000473176473), num_digit); form.elements[6].value = formatvalue((firstvalue * 128), num_digit); form.elements[7].value = formatvalue((firstvalue * 16), num_digit); form.elements[9].value = formatvalue((firstvalue * 0.5), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.125), num_digit); }else if (v_element == 9){ form.elements[1].value = formatvalue((firstvalue * 946.352946), num_digit); form.elements[2].value = formatvalue((firstvalue * 94.6352946), num_digit); form.elements[3].value = formatvalue((firstvalue * 9.46352946), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.946352946), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.000946352946), num_digit); form.elements[6].value = formatvalue((firstvalue * 256), num_digit); form.elements[7].value = formatvalue((firstvalue * 32), num_digit); form.elements[8].value = formatvalue((firstvalue * 2), num_digit); form.elements[10].value = formatvalue((firstvalue * 0.25), num_digit); }else if (v_element == 10){ form.elements[1].value = formatvalue((firstvalue * 3785.411784), num_digit); form.elements[2].value = formatvalue((firstvalue * 378.5411784), num_digit); form.elements[3].value = formatvalue((firstvalue * 37.85411784), num_digit); form.elements[4].value = formatvalue((firstvalue * 3.785411784 ), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.003785411784), num_digit); form.elements[6].value = formatvalue((firstvalue * 1024), num_digit); form.elements[7].value = formatvalue((firstvalue * 128), num_digit); form.elements[8].value = formatvalue((firstvalue * 8), num_digit); form.elements[9].value = formatvalue((firstvalue * 4), num_digit); } } function convertform_p(form, element){ var firstvalue = 0; for (var i = 1; i <= element; i++) { if (form.elements[i].value != null && form.elements[i].value.length != 0) { if (form.elements[1].value != "" && form.elements[num_elem_peso-1].value != "") return false; v_element = i; firstvalue = form.elements[i].value; break; }} if (firstvalue == 0) { clearform(form, element); return false; } if(isNaN(firstvalue)){alert("Entrada inválida");return;} if (v_element == 1){ form.elements[2].value = formatvalue((firstvalue * 0.001), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.000001), num_digit); form.elements[4].value = formatvalue((firstvalue * 0.0352739907), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.0022046244), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.0000009842), num_digit); }else if (v_element == 2){ form.elements[1].value = formatvalue((firstvalue * 1000), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.001), num_digit); form.elements[4].value = formatvalue((firstvalue * 35.2739907229), num_digit); form.elements[5].value = formatvalue((firstvalue * 2.2046244202), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.00098421), num_digit); }else if (v_element == 3){ form.elements[1].value = formatvalue((firstvalue * 1000000), num_digit); form.elements[2].value = formatvalue((firstvalue * 1000), num_digit); form.elements[4].value = formatvalue((firstvalue * 35273.9907229404), num_digit); form.elements[5].value = formatvalue((firstvalue * 2204.6244201838), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.98421), num_digit); }else if (v_element == 4){ form.elements[1].value = formatvalue((firstvalue * 28.3495), num_digit); form.elements[2].value = formatvalue((firstvalue * 0.0283495), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.0000283495), num_digit); form.elements[5].value = formatvalue((firstvalue * 0.0625), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.0000279017), num_digit); }else if (v_element == 5){ form.elements[1].value = formatvalue((firstvalue * 453.59237), num_digit); form.elements[2].value = formatvalue((firstvalue * 0.45359237), num_digit); form.elements[3].value = formatvalue((firstvalue * 0.000453592), num_digit); form.elements[4].value = formatvalue((firstvalue * 16), num_digit); form.elements[6].value = formatvalue((firstvalue * 0.0004464285), num_digit); }else if (v_element == 6){ form.elements[1].value = formatvalue((firstvalue * 0.001605), num_digit); form.elements[2].value = formatvalue((firstvalue * 1016.05), num_digit); form.elements[3].value = formatvalue((firstvalue * 1.01605), num_digit); form.elements[4].value = formatvalue((firstvalue * 35840), num_digit); form.elements[5].value = formatvalue((firstvalue * 2240), num_digit); } } function convertform_t(form, element){ var firstvalue = 0; for (var i = 1; i <= element; i++) { if (form.elements[i].value != null && form.elements[i].value.length != 0) { if (form.elements[1].value != "" && form.elements[2].value) return false; v_element = i; firstvalue = form.elements[i].value; break; } } if (firstvalue == "") { clearform(form, element); return false; } if(isNaN(firstvalue)){alert("Entrada inválida");return;} if (v_element == 1){ form.elements[2].value = formatvalue((firstvalue * (9/5)+32), num_digit); }else if (v_element == 2){ form.elements[1].value = formatvalue( ((firstvalue - 32) * (5/9)), num_digit); } }