Lcd 240x128 help

[Userrr]

I have an LCD with this documentation
http://orangetide.com/computing/gumstix/documentation/lcd/lm24010.pdf

And write source for sample as draw half of screen - white;
half - black

S:
//************************************
#include <18F4320.h>
#device adc=8
#use delay(clock=40000000)
#fuses NOWDT,WDT128,H4, NOFCMEN, NOBROWNOUT, BORV42, PUT, NOCPD, NOSTVREN, NODEBUG, NOLVP, NOWRT, NOWRTD, NOIESO, NOEBTR, NOEBTRB, NOMCLR, NOPROTECT, NOCPB, NOWRTB, NOWRTC, NOPBADEN

#use fast_io(D)


struct port_d_layout
{ short S; // Scan Sturtup Signal
short CP1; // Input Data Latch Signal
short CP2; // Input Data Clock Signal
short D1; // Data D1
short D2;
short D3;
short D4;
short none; // empty
} portdlcd;

#byte portdlcd=0xf83


void main()
{
int i,n;
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF|ADC_TAD_MUL_0);
setup_psp(PSP_DISABLED);
setup_spi(FALSE);
setup_wdt(WDT_OFF);
setup_timer_0(RTCC_INTERNAL);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);
set_tris_d(0x00);


while(1) // Çàöèêëèâàåìñÿ
{

// portdlcd.S=1; // Don't know what is S

for(n=0;n<128;n++)
{
portdlcd.cp1=1; //Begin for one Line
portdlcd.cp1=0;
for(i=0;i<30;i++) // 30x4=240 dots per 1 line
{
portdlcd.cp2=1; //clock high
portdlcd.cp2=0; //clock low
portdlcd.D1=0;
portdlcd.D2=0;
portdlcd.D3=0;
portdlcd.D4=0;
}
for(i=0;i<30;i++) // 30x4=240 dots per 1 line
{
portdlcd.cp2=1; //clock high
portdlcd.cp2=0; //clock low
portdlcd.D1=1;
portdlcd.D2=1;
portdlcd.D3=1;
portdlcd.D4=1;
}
}

portdlcd.S=0;

} // while


} // main


//*******************************************************

That what I get:
http://www.icd2.front.ru/scanlcd.jpg (sory for quality)

PLEASE Help understand how USE S (PIN1) signal (Input or Output)
How Put Pixel at coord(10,10) .
Thanks

[Konrad]

S is the horizotal sync pulse, from the data sheet hold it high while writing the first row.

[Userrr]

Thanks Konrad , maybe you help with function to write pixel with
coordinates?