code: function(e, unique_id){
  			
  			var timer_str = (this._custom_timer) ? this._custom_timer : this.time;
  			this['_int_id_' + unique_id] = setTimeout(function(){ 
  				Gritter._fade(e, unique_id);
  			}, timer_str);
  		
  		}
docs: Set the notification to fade out after a certain amount of time
  @private
  @param {Object} item The HTML element we're dealing with
  @param {Integer} unique_id The ID of the element