title: Help with JS and functions parameters
body: <p>Does JS support two functions with the same name and different parameters ?</p>
  
  <pre><code>function f1(a, b)
  {
  // a and b are numbers
  }
  
  function f1(a, b, c)
  {
  // a is a string
  //b and c are numbers
  }
  </code></pre>
  
  <p>Can I use those JS function for IE7, FF, Opera with no problem?</p>