<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/b89fc5dc-cad1-441e-8f2f-fccdd9da72e4/40F58C85-215D-429A-8965-3FFD0D6C0CB0/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://bignosebird.com/sdocs/backbutton.shtml" href="http://bignosebird.com/sdocs/backbutton.shtml" style="font-size: 11px;">bignosebird.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://bignosebird.com/sdocs/backbutton.shtml"><FONT face="Verdana,Helvetica,Arial">The Apache Environment variable, <B>HTTP_REFERER</B> is used above to show you the full URL of the page that brought you here. In the example above, Extended SSI (XSSI) logic was used to see if there was a value in the HTTP_REFERER variable. This allows you to handle situations such as bookmarks or browsers that do not report a value for the HTTP_REFERER. Let's look at the source code: </FONT></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://bignosebird.com/sdocs/backbutton.shtml"><FONT face="Verdana,Helvetica,Arial"> &lt;!--#if expr="${HTTP_REFERER} =/http/" --&gt; &lt;B&gt;You came from &lt;!--#echo var="HTTP_REFERER"--&gt;&lt;/B&gt; &lt;!--#else --&gt; &lt;B&gt;I don't know where you came from&lt;/B&gt; &lt;!--#endif --&gt; </FONT></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://bignosebird.com/sdocs/backbutton.shtml"><FONT face="Verdana,Helvetica,Arial"><FONT color="#660000"><B>I don't have XSSI, Can I still have a back button?</B></FONT> Of course. With any SSI compatible server you can simply do this: </FONT></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://bignosebird.com/sdocs/backbutton.shtml"><FONT face="Verdana,Helvetica,Arial"> &lt;A HREF="&lt;!--#echo var="HTTP_REFERER"--&gt;"&gt;BACK&lt;/A&gt; </FONT></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/40F58C85-215D-429A-8965-3FFD0D6C0CB0/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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