function frameback(sciezka) {

 podgladKR = window;

 podgladKR.document.open();
 podgladKR.document.writeln('<html>');
 podgladKR.document.writeln('<frameset framespacing="0" border="false" frameborder="0" rows="17,*">');
 podgladKR.document.writeln('<frame name="naglback" src="naglowek_back.htm" scrolling="no" noresize>');
 podgladKR.document.writeln('<frame name=podback2 src="' + sciezka + '" scrolling="yes" noresize>');
 podgladKR.document.writeln('</frameset>');
 podgladKR.document.writeln('</html>');
 podgladKR.document.close();

}