1	<!-- tw-nav-back.txt -->
     2	<!--
     3	     WARNING: never use nested 'form' elements, or really hard-to-nail
     4	     bugs may occur. So do not include this button inside another form.
     5	-->
     6	<p>
     7	<form>
     8	<fieldset>
     9	<!-- the following two methods are equivalent -->
    10	<input type="button" value="&lt;&lt;  b a c k"
    11	 onclick="javascript:history.back()">
    12	
    13	<!--
    14	<input type="button" value="&lt;&lt;  b a c k"
    15	 onclick="javascript:history.go(-1)">
    16	-->
    17	
    18	</fieldset>
    19	</form>
    20	
    21	<!-- /tw-nav-back.txt -->