Can anyone make this MACD alert on my 5 min chart if the 30 min mACD crossed?

[simpletrade]

This is a great indicator I found here--it draws arrows if MACD crosses the signal line without drawing the MACD, but can anyone recode it so if I have it on a chart with a faster timeframe than 30 min, it will only alert if a 30 min MACD crossed its signal line even though it isnt on a real 30 min chart?

//+------------------------------------------------------------------+

//|                                         EMA-Crossover_Signal.mq4 |

//|         Copyright © 2005, Jason Robinson (jnrtrading)            |

//|                   https://www.mql5.com/go?link=http://www.jnrtading.co.uk/                     |

//+------------------------------------------------------------------+

/*

  +------------------------------------------------------------------+

  | Allows you to enter two ema periods and it will then show you at |

  | Which point they crossed over. It is more usful on the shorter   |

  | periods that get obscured by the bars / candlesticks and when    |

  | the zoom level is out. Also allows you then to remove the emas   |

  | from the chart. (emas are initially set at 5 and 6)              |

  +------------------------------------------------------------------+

*/   

#property copyright "Copyright © 2005, Jason Robinson (jnrtrading)"

#property link      "jnrtrading.co.uk"

#property indicator_chart_window

#property indicator_buffers 2

#property indicator_color1 Blue

#property indicator_color2 Red

double CrossUp[];

double CrossDown[];

extern int fast_ema_signal = 12;//5

extern int slow_ema_signal = 26;//35

extern int signal_period   = 9;//10

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

int init()

  {

//---- indicators

   SetIndexStyle(0, DRAW_ARROW, EMPTY);

   SetIndexArrow(0, 233);

   SetIndexBuffer(0, CrossUp);

   SetIndexStyle(1, DRAW_ARROW, EMPTY);

   SetIndexArrow(1, 234);

   SetIndexBuffer(1, CrossDown);

//----

   return(0);

  }

//+------------------------------------------------------------------+

//| Custom indicator deinitialization function                       |

//+------------------------------------------------------------------+

int deinit()

  {

//---- 

//----

   return(0);

  }

//+------------------------------------------------------------------+

//| Custom indicator iteration function                              |

//+------------------------------------------------------------------+

int start() {

   static datetime dt = 0;

   int limit, i, counter;

   double fasterEMAnow, slowerEMAnow, fasterEMAprevious, slowerEMAprevious, fasterEMAafter, slowerEMAafter;

   double Range, AvgRange;

   int counted_bars=IndicatorCounted();

//---- check for possible errors

   if(counted_bars<0) return(-1);

//---- last counted bar will be recounted

   if(counted_bars>0) counted_bars--;

   limit=Bars-counted_bars;

   

   static datetime cDT = 0;

   for(i = 0; i <= limit; i++) {

   

      counter=i;

      Range=0;

      AvgRange=0;

      CrossUp = 0; CrossDown = 0;

      for (counter=i ;counter<=i+9;counter++)

      {

         AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);

      }

      Range=AvgRange/10;

       

      fasterEMAnow = iMACD(NULL,0,fast_ema_signal,slow_ema_signal,signal_period,PRICE_CLOSE,MODE_MAIN,i);

      fasterEMAprevious = iMACD(NULL,0,fast_ema_signal,slow_ema_signal,signal_period,PRICE_CLOSE,MODE_MAIN,i+1);

      fasterEMAafter = iMACD(NULL,0,fast_ema_signal,slow_ema_signal,signal_period,PRICE_CLOSE,MODE_MAIN,i-1);

      slowerEMAnow = iMACD(NULL,0,fast_ema_signal,slow_ema_signal,signal_period,PRICE_CLOSE,MODE_SIGNAL,i);

      slowerEMAprevious = iMACD(NULL,0,fast_ema_signal,slow_ema_signal,signal_period,PRICE_CLOSE,MODE_SIGNAL,i+1);

      slowerEMAafter = iMACD(NULL,0,fast_ema_signal,slow_ema_signal,signal_period,PRICE_CLOSE,MODE_SIGNAL,i-1);

      

      

      if ((fasterEMAnow > slowerEMAnow) && (fasterEMAprevious < slowerEMAprevious)) {

         CrossUp = Low - Range*0.5;

         if ((i < 2) && (dt != iTime(NULL,0,0)))

            {

               Print("** Macd Xross up");

               PlaySound("Alert2.wav");

               dt = iTime(NULL,0,0);

            }

      }

      else if ((fasterEMAnow  slowerEMAprevious)) {

         CrossDown = High + Range*0.5;

         if ((i < 2) && (dt != iTime(NULL,0,0)))

            {

               Print("** Macd Xross down");

               PlaySound("Alert2.wav");

               dt = iTime(NULL,0,0);

            }

      }

      

   }

   return(0);

}