void Lcd_Cmd (unsigned char Cmd)
{	
	Rs = 0;
	Rw = 0;
	Lcd = (Cmd & 0xf0) >> 4;		//Write high nibble
	En = 1;
	En = 0;
	Lcd = (Cmd & 0x0f);			//Write low nibble

	En = 1;
	En = 0;
	Delay_uS (50); 				//Delay 50us
}