Simple JDM PIC Programmer

This is a serial programmer works on the RS232 ( PC serial port ), known as JDM Programmer, thanks to the site http://pic16f84.hit.bg/ which contains the schematic and the programmer software

The programmer is powered from the Serial port itself, so there's no need to any external power supply.
But be careful this circuit will not work with the Laptop Serial port due to the weak voltages it has.

The schematic