Conversion from Decimal to octal, binary and hexadecimal in javascript

Question

I have a form where a user enters a decimal number and then from the dropdown menu he chooses if he wants to convert it either to binary, octal or hexadecimal by clicking on a c

Answer 1

Here's some great code I just made to convert between binary, octal, decimal and hexadecimal:

function id(id) {
  return document.getElementById(id);
}
function Convert(s, n) {
  if(parseInt(id(s).value, n)) {
    if("bin" != s) { id("bin").value = parseInt(id(s).value, n).toString(2) }
    if("oct" != s) { id("oct").value = parseInt(id(s).value, n).toString(8) }
    if("dec" != s) { id("dec").value = parseInt(id(s).value, n).toString(10) }
    if("hex" != s) { id("hex").value = parseInt(id(s).value, n).toString(16) }
  } else {
    if("bin" != s) { id("bin").value = "" }
    if("oct" != s) { id("oct").value = "" }
    if("dec" != s) { id("dec").value = "" }
    if("hex" != s) { id("hex").value = "" }
  }
}

Small and simple, perfect for anyone trying to find one of that kind.