if(typeof(window.console) != 'undefined')
{
	logDebug = function(content, level)
  {
    if (level === undefined)
    {
      level = 'warn';
    }
    switch (level)
    {
      case 'info': console.info(content); break;
      case 'warn': console.warn(content); break;
      case 'error': console.error(content); break;
      case 'log': default: console.log(content); break;
    }
    return true;
  };
}
else
 
{
	logDebug = function()
  {
   //alert('Unable to log in console because Firebug is disable.');
  }
}