nput type="button" name="btn_kw_20" value="<" onClick="appendText('<');" />
<BR />
<input type="button" name="btn_kw_21" value=">=" onClick="appendText('>=');" />
<input type="button" name="btn_kw_22" value="<=" onClick="appendText('<=');" />
<input type="button" name="btn_kw_23" value="!=" onClick="appendText('!=');" />
<input type="button" name="btn_kw_24" value="!" onClick="appendText('!');" />
<input type="button" name="btn_kw_25" value="*" onClick="appendText('*');" />
<input type="button" name="btn_kw