code: function(o) {
  		var c = '';
  		
  		if (!o.read && !o.write) {
  			c = 'elfinder-na';
  		} else if (!o.read) {
  			c = 'elfinder-wo';
  		} else if (!o.write) {
  			c = 'elfinder-ro';
  		}
  		
  		if (o.type) {
  			c += ' elfinder-' + this.escape(o.type);
  		}
  		
  		return c;
  	}
docs: Return css class marks file permissions
  
  @param  Object  file
  @return String