[docs] Change in SetCookieTag made by Jeff Dafoe

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http://www.icdevgroup.org/i/doc/wiki/SetCookieTag.html

--- tmp/sEXdvbeL:209.215.55.95.previous	Thu Dec 19 15:09:25 2002
+++ tmp/sEXdvbeL:209.215.55.95.current	Thu Dec 19 15:09:25 2002
@@ -101,3 +101,14 @@
 the Catalog directive). This ensures that the cookie will be
 visible regardless of how the end user returns to your catalog.
 
+Tips
+
+You can use the time tag in conjunction with the set-cookie tag to set the expiration date relative to the current date.
+
+    [set-cookie
+     name=mycookie
+     value="the value"
+     expire="[time gmt=1 adjust='+2190']%a, %m-%b-%Y %H:%M:%S GMT[/time]"
+    ]
+
+In the example above, the adjustment of +2190 will set a cookie expiration of 2190 hours forward from the current date.