function open_window(plik,wym_x,wym_y,okno){
  if((wym_x<=0)||(wym_x>screen.availWidth)) wym_x=screen.availWidth;
  if((wym_y<=0)||(wym_y>screen.availHeight)) wym_y=screen.availHeight;
  x=(screen.availWidth-wym_x)/2;
  y=(screen.availHeight-wym_x)/2;
  pop=window.open(plik,okno, 'toolbar=yes,menubar=yes,scrollbars=yes,resizable=yes,dependent=yes,height='+wym_y+',width='+wym_x+',left='+x+',top='+y);
  pop.focus();

}

function open_standard_window(plik,okno){
  wym_x=640;
  wym_y=480;
  if((wym_x<=0)||(wym_x>screen.availWidth)) wym_x=screen.availWidth;
//  if((wym_y<=0)||(wym_y>screen.availHeight)) wym_y=screen.availHeight;
  x=(screen.availWidth-wym_x)/2;
  y=(screen.availHeight-wym_x)/2;
  pop=window.open(plik,okno, 'toolbar=no,menubar=no,scrollbars=yes,resizable=yes,dependent=yes,height='+wym_y+',width='+wym_x+',left='+x+',top='+y);
  pop.focus();

}

function open_image(image,img_x,img_y){
  wym_x=img_x;
  wym_y=img_y;
  scrollx=0;
  scrolly=0;
  if((wym_x<=0)||(wym_x>(screen.availWidth-50))) {scrollx=1; wym_x=screen.availWidth-20; wym_y+=20;}
  if((wym_y<=0)||(wym_y>(screen.availHeight-40))){scrolly=1; wym_y=screen.availHeight-40; wym_x+=20;}
  x=(screen.availWidth-wym_x)/2;
  y=(screen.availHeight-wym_y)/2;
  if(scrollx || scrolly ) scrollbars='scrollbars=yes';
  else scrollbars='scrollbars=no';
  pop=window.open('','pop', 'toolbar=no,menubar=no,'+scrollbars+',resizable=yes,height='+wym_y+',width='+wym_x+',left='+x+',top='+y);
  pop.document.write('<html><TITLE>Zdjêcie</TITLE><body bgcolor=#CFD2EF style="margin:0px; padding: 0px"><TABLE width="100%" Height="100%" cellpadding=0 cellspacing=0 border=0><TR><TD style="vertical-align: middle; text-align: center">');
  pop.document.write('<A HREF="javascript:self.close()"><IMG style="border:1px solid white;" SRC="'+image+'"');
  if(img_y>0) pop.document.write(' height='+img_y); 
  if(img_x>0) pop.document.write(' width='+img_x);
  pop.document.write(' ></A></TD></TR></TABLE>');
  pop.document.write('</body></HTML>');
  pop.focus();
}


