Little routines

Markdown has an idiotic way of signaling code-blocks. This makes the copy-paste routine of authoring code for online viewing a little easier. Requires prototype.

function codificate(elem) {
  var text = getTextAreaSelection(elem);
  if (!text) return;
  lines = text.split(/\n/);
  text = lines.map(function (line) {
    return '    ' + line + '\n';
  }).inject('', function (text, line) {
    return text + line;
  });
  setTextAreaSelection(elem, text);
}