calculator test

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function calcLength() { //Get values var origLength = Number(document.Length.origLength.value); var origUnit = document.Length.LengthOrigUnit.value; var newUnit = document.Length.LengthNewUnit.value; var mLength; var newLength; //convert to metres switch(origUnit) { case 'metre': mLength=origLength * 1; break; case 'kilometre': mLength=origLength * 1000; break; case 'millimetre': mLength=origLength * 0.001; break; case 'centimetre': mLength=origLength * 0.01; break; case 'mile': mLength=origLength * 1609.344; break; case 'yard': mLength=origLength * 0.9144; break; case 'foot': mLength=origLength * 0.3048; break; case 'inch': mLength=origLength * 0.0254; break; default: mLength=origLength * 1; break; } switch(newUnit) { case 'metre': newLength=mLength * 1; break; case 'kilometre': newLength=mLength * 0.001; break; case 'millimetre': newLength=mLength *...