function initialize() { //>Initialize fillLists(); // FillLists (base, target) document.getElementById("value").value = "popup"; // Write 'popup' into value-field document.getElementById("value").focus(); // Set focus to value-field document.getElementById("value").select(); // Select 'popup' in value field calculate(); } // Calculate -> '- - - - -' in result function newType() { clearLists(); fillLists(); //>NewType calculate(); setFocus(); } // function newValue() { calculate(); setFocus(); } //>NewValue function newBase() { calculate(); setFocus(); } //>NewBase function newTarget() { calculate(); setFocus(); } //>NewTarget function setFocus() { document.getElementById("value").focus(); } //>SetFocus function clearLists() { //>ClearLists (base, target) var base = document.getElementById("base"); // Get Html-element of the base var target = document.getElementById("target"); // Get Html-element of the target for (var i=base.length-1; i>=0; i--) { // Loop: content of the lists base.options[i] = null; // Void base-item target.options[i] = null; } } // Void target-item function enter() { //>Enter pressed var input = document.getElementById("value").value; // Value of the input-field if (input=="popup") // On 'popup' var pop = window.open("units.html","", // -> Open converter in a popup "resizable=yes,scrollbars=no,width=365,height=180,left=50,top=8"); } // with several window options function calculate() { //>Calculate var type = document.getElementById("type"); // Html-Element of type (category) var typeID = type.options[type.selectedIndex].id; // ID of the choosen type var input = document.getElementById("value").value; // Content (text) of input-value var white = input.match(/\s*/); // White spaces in input (for opera) var value = parseFloat(input.replace(/,/,'.')); // Parsed string with ','->'.' or NaN var baseValue = document.getElementById("base").value; // Base-value var targetValue = document.getElementById("target").value; // Target-value if (typeID=="numbersystem") { // On Numbersystem: calculateNumbersystem(input, baseValue, targetValue); return; } // -> Calculate Numbersystem if (isNaN(value) || (white && input==white)) { // No valid number or only whitespaces document.getElementById("result").value="- - - - - -"; return; } // -> Clear result value if (typeID=="temperature") { // On Temperature: calculateTemperature(value, baseValue, targetValue); return; } // -> Calculate Temperature var result = value * baseValue / targetValue; // Else: Convert value to result document.getElementById("result").value = result; } // Write result in text-field function calculateNumbersystem(input, base, target) { //>CalculateNumbersystem var valid = validateInput(input, base); // Validate the input-field (value) var decimal = parseInt(valid, base); // Convert input-value to decimal var result = decimal.toString(target); // Convert decimal-value to target syst. document.getElementById("result").value = result; } // Write target-value to result field function validateInput(input, base) { //>ValidateInput (for number systems) var decimal = parseInt(input, base); // Convert input-value->decimal-integer if (isNaN(decimal)) decimal = ""; // No decimal number ->void input-field var valid = decimal.toString(base); // Convert decimal back to base-system document.getElementById("value").value = valid; // Write validated value to input field return valid; } // Return validated value function calculateTemperature(value, base, target) { //>CalculateTemperature var celsius = Number.NaN; // Convert base to celsius if (base=="[F]") celsius = (value-32)*5/9; // [F] -> [C] else if (base=="[C]") celsius = value; // [C] -> [C] else if (base=="[K]") celsius = value-273.15; // [K] -> [C] else if (base=="[R]") celsius = (value*5/9)-273.15; // [R] -> [C] var result = Number.NaN; // Convert celsius to target if (target=="[F]") result = (celsius*9/5)+32 // [C] -> [F] else if (target=="[C]") result = celsius; // [C] -> [C] else if (target=="[K]") result = celsius+273.15; // [C] -> [K] else if (target=="[R]") result = (celsius+273.15)*9/5; // [C] -> [R] document.getElementById("result").value = result; } // Write result in text-field function enlist(text, value) { //>Enlist given items to base & target var base = document.getElementById("base"); // Html-Element for Base-Unit var target = document.getElementById("target"); // Target-Unit base.options[base.length] = new Option(text, value); // Set Html-Properties to base target.options[target.length] = new Option(text, value); } // target function fillLists() { //>FillLists var type = document.getElementById("type"); // Get Html-Element of the 'type' var typeID = type.options[type.selectedIndex].id; // Get the ID of the selected type if (typeID=="length") { // Lengths: enlist("[m] Meter", 1.0); // 1 [m] is base enlist("[km] Kilometer", 1000.0); // 1 [km] = 1000 [m] enlist("[dm] Decimeter", 0.1); // 1 [dm] = 0.1 [m] enlist("[cm] Centimeter", 0.01); // 1 [cm] = 0.01 [m] enlist("[in] Inch = 1/36 yd", 0.0254); // 1 [in] = 0.0254 [m] enlist("[ft] Feet", 0.3048); // 1 [ft] = 0.3048 [m] enlist("[yd] Yard", 0.9144); // 1 [yd] = 0.9144 [m] enlist("[ha] Hands (Br.)", 0.1016); // 1 [ha] = 0.1016 [m] enlist("[sp] Span (Br.)", 0.2286); // 1 [sp] = 0.2286 [m] enlist("[mi] Mile (Br.)", 1609.344); // 1 [mi] = 1609.344 [m] enlist("[mi-u] Mile (U.S. Survey)", 1609.347219); // 1 [mi-u] = 1609.347219 [m] enlist("[NM, n mi] Nautical mile | Seemeile", 1852.0); // 1 [n mi] = 1852 [m] enlist("[ch] Chain (Br.)", 20.1168); // 1 [ch] = 20.1168 [m] enlist("[li] Links (Br.)", 0.201168); // 1 [li] = 0.201168 [m] enlist("[BC] Barleycorn (Br.)", 0.008467); // 1 [BC] = 0.008467 [m] enlist("[fur] Furlong (Br.)", 201.168); // 1 [fur] = 201.168 [m] enlist("[fth] Fathom (Br.)", 1.8288); // 1 [fth] = 1.8288 [m] enlist("[ftu] Fathom (Hungary)", 1.8964838); } // 1 [ftu] = 1.8964838 [m] else if (typeID=="area") { // Areas: enlist("[m^2] Square meter", 1.0); // 1 [m^2] S is base enlist("[km^2] Square kilometer", 1000000.0); // 1 [km^2] = 1000000 [m^2] enlist("[dm^2] Square decimeter", 0.01); // 1 [dm^2] = 0.01 [m^2] enlist("[cm^2] Square centimeter", 0.0001); // 1 [cm^2] = 0.0001 [m^2] enlist("[a] Are", 100.0); // 1 [a] = 100 [m^2] enlist("[ha] Hectare", 10000.0); // 1 [ha] = 10000 [m^2] enlist("[acre] Acre (Br.)", 4046.8564224); // 1 [acre] = 4046.8564224 [m^2] enlist("[Mg-Wü] Morgen (Württemberg)", 3152.0); // 1 [Mg-Wü] = 3152 [m^2] enlist("[Mg-Pr] Morgen (Preussen)", 2553.22); // 1 [Mg-Pr] = 2553.22 [m^2] enlist("[Mg-Ba] Morgen (Baden)", 3600.0); // 1 [Mg-Ba] = 3600 [m^2] enlist("[Mg-Ha] Morgen (Hannover)", 2621.0); // 1 [Mg-Ha] = 2621 [m^2] enlist("[Mg-He] Morgen (Hessen) [vha]", 2500.0); // 1 [Mg-He] = 2500 [m^2] enlist("[Mg-Fr] Morgen (Franken)", 2000.0); // 1 [Mg-Fr] = 2000 [m^2] enlist("[Mg-Ol] Morgen (Oldenburg)", 2256.0); // 1 [Mg-Ol] = 2256 [m^2] enlist("[Mg-OJ] Morgen (Oldenburg-Jück)", 4538.0); // 1 [Mg-OJ] = 4538 [m^2] enlist("[Mg-Ka] Morgen (Kassel)", 2386.0); // 1 [Mg-Ka] = 2386 [m^2] enlist("[Mg-Ka] Morgen (Bremen)", 2572.0); // 1 [Mg-Ka] = 2572 [m^2] enlist("[Mg-Kn] Morgen (Köln)", 3176.0); // 1 [Mg-Kn] = 3176 [m^2] enlist("[Mg-By] Morgen (Bayern)", 3407.0); // 1 [Mg-By] = 3407 [m^2] enlist("[Mg-HH] Morgen (Hamburg)", 9658.0); // 1 [Mg-HH] = 9658 [m^2] enlist("[Mg-HH] Morgen (HH: Geest-Scheffel)", 4205.0); // 1 [Mg-HH] = 4205 [m^2] enlist("[Mg-KM] Morgen (Kehdinger Marschmorgen)",10477.0); // 1 [Mg-KM] = 10477 [m^2] enlist("[Mg-Hd] Morgen (Hadeln)", 11780.0); // 1 [Mg-Hd] = 11780 [m^2] enlist("[Mg-Ho] Morgen (Holstein)", 5046.0); // 1 [Mg-Ho] = 5046 [m^2] enlist("[Mg-SH] Morgen (Schleswig-Holstein)", 5466.0); // 1 [Mg-SH] = 5466 [m^2] enlist("[Mg-Ku] Morgen (Kulmischer Morgen)", 5601.17); // 1 [Mg-Ku] = 5601.17 [m^2] enlist("[Mg-Of] Morgen (Ostfriesland)", 5674.0); // 1 [Mg-Of] = 5674 [m^2] enlist("[Mg-Me] Morgen (Mecklenburg)", 6500.0); // 1 [Mg-Me] = 6500 [m^2] enlist("[Mg-Me] Morgen (Harburg & Stade)", 8185.0); // 1 [Mg-Me] = 8185 [m^2] enlist("[Mg-Br] Morgen (Brasil)", 4046.8564224); // 1 [Mg-Br] = 4046.8564224 [m^2] enlist("[Mg-Fr] Morgen (France)", 5200.0); // 1 [Mg-Fr] = 5200 [m^2] enlist("[Mg-Un] Morgen (Hungary)", 5754.6412858599); // 1 [Mg-Un] = 5754.6412858599 [m^2] enlist("[in^2] Square Inch", 0.00064516); // 1 [in^2] = 0.00064516 [m^2] enlist("[ft^2] Square feet", 0.09290304); // 1 [ft^2] = 0.09290304 [m^2] enlist("[yd^2] Square yard ", 0.83612736); // 1 [yd^2] = 0.83612736 [m^2] enlist("[mi^2] Square mile (Br.)", 2589988.110336); // 1 [mi^2] = 2589988.110336 [m^2] enlist("[NM^2] Square naut. mile", 3429904); // 1 [nm^2] = 3429904 [m^2] enlist("[sq rd] Square rod (Br. & Am.)", 25.29285264); // 1 [sq rd] = 25.29285264 [m^2] enlist("[ro] Rood (Br. & Am.)", 1011.7141056); // 1 [ro] = 1011.7141056 [m^2] enlist("[se] Section = square mile", 2589988.110336); // 1 [se] = 2589988.110336 [m^2] enlist("[sq-ch] Square chain (Br.)", 404.68564224); // 1 [sq-ch] = 404.68564224 [m^2] enlist("[sFtu] Square Fathom (Hungary)", 3.5966508036624396);} // 1 [sFtu] = 3.59665080366244[m^2] else if (typeID=="volume") { // Volumes: enlist("[m^3] Cubic meter", 1.0); // 1 [m^3] is base enlist("[km^3] Cubic kilometer", 1000000000.0); // 1 [km^3] = 1000000000 [m^3] enlist("[dm^3] Liter", 0.001); // 1 [dm^3] = 0.001 [m^3] enlist("[cm^3] Milliliter", 0.000001); // 1 [cm^3] = 0.000001 [m^3] enlist("[mm^3] Microliter", 1e-9); // 1 [mm^3] = 1e-9 [m^3] enlist("[in^3] Cubic inch", 0.000016387064); // 1 [in^3] = 0.000016387064 [m^3] enlist("[ft^3] Cubic foot", 0.028316846592); // 1 [ft^3] = 0.028316846592 [m^3] enlist("[yd^3] Cubic yard", 0.764554857984); // 1 [yd^3] = 0.764554857984 [m^3] enlist("[gal-b] Gallons (Br.)", 0.00454609); // 1 [gal-b] = 0.00454609 [m^3] enlist("[gal-u] Gallons (Am.)", 0.003785411784); // 1 [gal-u] = 0.003785411784 [m^3] enlist("[gal-r] Gallons (beer)", 0.004621152048); // 1 [gal-r] = 0.004621152048 [m^3] enlist("[gal-d] US dry gallons", 0.00440488377086); // 1 [gal-d] = 0.00440488377086[m^3] enlist("[bl-br] Barrel (Br.)", 0.16365924); // 1 [bl-br] = 0.16365924 [m^3] enlist("[bl-fl] Barrel (Br., petrol)", 0.159113); // 1 [bl-fl] = 0.159113 [m^3] enlist("[bl-us] Barrel (Am. petrol)", 0.158987294928); // 1 [bl-us] = 0.158987294928 [m^3] enlist("[fl-bl] Barrel (Am. fluid)", 0.119240471196); // 1 [fl-bl] = 0.119240471196 [m^3] enlist("[dr-bl] Barrel (Am. dry)", 0.115628198985075);} // 1 [dr-bl] = 0.11562819898508[m^3] else if (typeID=="mass") { // Mass: enlist("[kg] Kilogram", 1.0); // 1 [kg] is base enlist("[g] Gram", 0.001); // 1 [g] = 0.001 [kg] enlist("[t] Ton", 1000.0); // 1 [t] = 1000 [kg] enlist("[tn] Long ton (Br.)", 1016.0469088); // 1 [tn] = 1016.0469088 [kg] enlist("[sh tn] Short ton (Am.)", 907.18474); // 1 [sh tn] = 907.18474 [kg] enlist("[oz] Ounce = [lb]/16 (Br.)", 0.028349523125); // 1 [oz] = 0.028349523125 [kg] enlist("[oz t] Ounce (troy)", 0.0311034768); // 1 [oz t] = 0.0311034768 [kg] enlist("[lb] Pound (Br.) = 7000 [gr]", 0.45359237); // 1 [lb] = 0.45359237 [kg] enlist("[lb-m] Pound (metric)", 0.500); // 1 [lb-m] = 0.500 [kg] enlist("[st] Stone", 6.35029318); // 1 [st] = 6.35029318 [kg] enlist("[qt] Quarter = 2 stone", 12.70058636); // 1 [qt] = 12.70058636 [kg] enlist("[gr] Grain (Br.)", 0.00006479891); // 1 [gr] = 0.00006479891 [kg] enlist("[sl] Slug, geepound", 14.593903); // 1 [sl] = 14.593903 [kg] enlist("[q] Quintal (metric)", 100.0); // 1 [q] = 100 [kg] enlist("[kt] Carat (metric) | Karat", 0.0002);}} // 1 [kt] = 0.0002 [kg]