Fallback to use things like console.log() but not have it kill old browsers.

console-fallback.js

// This is not some kind of polyfill! It's just to prevent old browsers from failing horribly

var fallback = function() {};
var methods = ['assert', 'clear', 'count', 'debug', 'dir', 'dirxml', 'error', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log', 'profile', 'profileEnd', 'time', 'timeEnd', 'timeStamp', 'trace', 'warn', 'table'];

if(typeof console === 'undefined') {
  var console = {};
}

for(var i in methods) {
  if(typeof console[methods[i]] === 'undefined') {
    console[methods[i]] = fallback;
  }
}