Make checkIsMyInvitation use Django to parse the URL
Using django is more reliable and makes the code easier to read as
there is no knowledge of the url layout required.
Patch by: Sverre Rabbelier
/* PAGE STRUCTURE */
#container { position:relative; width:100%; min-width:760px; padding:0; }
#content { margin:10px 15px; }
#header { width:100%; }
#content-main { float:left; width:100%; }
#content-related { float:right; width:18em; position:relative; margin-right:-19em; }
#footer { clear:both; padding:10px; }
/* COLUMN TYPES */
.colMS { margin-right:20em !important; }
.colSM { margin-left:20em !important; }
.colSM #content-related { float:left; margin-right:0; margin-left:-19em; }
.colSM #content-main { float:right; }
.popup .colM { width:95%; }
.subcol { float:left; width:46%; margin-right:15px; }
.dashboard #content { width:500px; }
/* HEADER */
#header { background:#417690; color:#ffc; overflow:hidden; }
#header a:link, #header a:visited { color:white; }
#header a:hover { text-decoration:underline; }
#branding h1 { padding:0 10px; font-size:18px; margin:8px 0; font-weight:normal; color:#f4f379; }
#branding h2 { padding:0 10px; font-size:14px; margin:-8px 0 8px 0; font-weight:normal; color:#ffc; }
#user-tools { position:absolute; top:0; right:0; padding:1.2em 10px; font-size:11px; text-align:right; }
/* SIDEBAR */
#content-related h3 { font-size:12px; color:#666; margin-bottom:3px; }
#content-related h4 { font-size:11px; }
#content-related .module h2 { background:#eee url(../img/admin/nav-bg.gif) bottom left repeat-x; color:#666; }