<form><input type="button" value="????? ????" onClick="alert('???? ??? ?? ??????? '); return true"></form>

<SCRIPT LANGUAGE="JavaScript"><!-- hide this script tag's contents from old browsersfunction goHist(a) { history.go(a); // Go back one.}//<!-- done hiding from old browsers --></script><FORM METHOD="post"><INPUT TYPE="button" VALUE=" ????? " onClick="goHist(-1)"><INPUT TYPE="button" VALUE=" ??????" onClick="goHist(1)"></form>