title: Obtain javascript keycode of symbols in the numeric keys of keyboards
body: <p>What is the javascript keycode for the / (forward slash) symbol regardless the language and culture of keyboard and OS? In an English keyboard the forward slash is in a key separate from the numeric keys and it's keycode is 191. However in a Spanish keyboard that character is together with the number 7 in the same key and to type it in I have to do SHIFT + 7, but that combination does not result in keycode 191! </p>
  
  <p>I've tried <code>if (event.shiftKey &amp;&amp; event.keyCode == 55) {}</code> where 55 is the keycode of character 7 and it works, but with an English keyboard the <code>if (event.shiftKey &amp;&amp; event.keyCode == 55) {}</code> condition allows me to type in the &amp; (ampersand) symbol.</p>
  
  <p>I have a textbox in my web page for which I only want to allow users to type in digits and forward slash regardless the language of the keyboards or OSs they are using and regardless the have to press just one key to enter the forward slash or they have to do a combination of SHIFT + a numeric key or another type of combination. How can I do this?</p>