function zoom(name,napis,sirka,vyska) {
	sirka = sirka + 20;
	vyska = vyska + 65;
	if ((sirka>screen.width) || (vyska>screen.height)) {
		if (vyska>screen.height) vyska = screen.height - 30;
			else vyska=vyska+17;
		if (sirka>screen.width) sirka = screen.width - 30;
			else sirka=sirka+17;
		no=window.open("","zoom","left=0,top=0,width="+sirka+",height="+vyska+",toolbar=no,location=no,directories=no,status=no,"+
			"menubar=no,scrollbars=yes,resizable=yes,copyhistory=no");
		}	
	else	
		no=window.open("","zoom","left=0,top=0,width="+sirka+",height="+vyska+",toolbar=no,location=no,directories=no,status=no,"+
			"menubar=no,scrollbars=no,resizable=yes,copyhistory=no");
	no.focus();  
	with (no.document) {
		open();
		writeln('<HTML>\n<BODY bgcolor="#000000" text="#FFFFFF">');
		writeln('<p align="center"><IMG SRC="'+name+'.jpg"></p>');
		writeln('<p align="center"><font face="Tahoma"><b>'+napis+'</b></font></p>');
		writeln('</BODY>\n</HTML>');
		close();
	}	
}

