Select a link, then press <B>[F1]</B> key :<BR>
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<A   HRef="http://www.somesite.org"   >"Default" Help</A><BR>
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<A   HRef="http://www.somesite.org"   OnHelp="return false;"   >OnHelp: return false <B>( Help Off )</B></A>&nbsp;&nbsp;&nbsp;
<A   HRef="http://www.somesite.org"   OnHelp="return true;"   >OnHelp: return true</A><BR>
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<A   HRef="http://www.somesite.org"   OnHelp="alert('Need Help ?');"   >OnHelp: alert</A>&nbsp;&nbsp;&nbsp;
<A   HRef="http://www.somesite.org"   OnHelp="alert('Need Help ?'); return false;"   >OnHelp: alert & return false <B>( My Help only)</B></A>&nbsp;&nbsp;&nbsp;
<A   HRef="http://www.somesite.org"   OnHelp="alert('Need Help ?'); return true;"   >OnHelp: alert & return true</A><BR>