getting parameters from the URL

[Frank Daly]

Hi

I found the code below using google which works fine but i don't understand it. now unfortunately i've hit a problem; one of my parameters has an & in it. this has been escaped to & but the code below just picks out the & and my program breaks down.

Could someone explain the code please.

Frank

      function querystring(name)   // returns a named value from the querystring
      {
          var tmp = unescape( location.search.substring(1) );
          var i   = tmp.toUpperCase().indexOf(name.toUpperCase()+"=");
 
          if ( i >= 0 )
          {
               tmp = tmp.substring( name.length+i+1 );
               i = tmp.indexOf("&");
               return( tmp = tmp.substring( 0, (i>=0) ? i : tmp.length ));
          }
 
          return("");
      }

[ March 24, 2005: Message edited by: Eric Pascarello ]

[Eric Pascarello]

How is the code being escaped?

The & should be escape to %27 and it would make your life easier.

Eric

[Bear Bibeault]

Eric ic correct. There is a big difference between URL encoding and HTML encoding.

[Frank Daly]

I'm not entirely sure how the & is being escaped. I use cocoon and it's serverpages technology. I query a database table and put the returned results into a list box. Viewing the source of this page I can see that any record containing an & has this escaped to &

Frank