Re: Web OPAC and HTTP_REFERER

[Jonavon Wilcox <jowilcox at vt dot edu>]

Currently the Millennium web opac does not provide a server side CGI 
environment, with the exception of airpac, but you can use the 
javascript document.referrer

I have not tested this but this is the possible code you want to use.

function goBasedOnWhereUHaveBeen () {
   var yourLastPage = document.referrer;
   if (yourLastPage == "" || yourLastPage == 
"http://www.yourmainsite.gov/";){
     // Use document.location to redirect user
     // document.location='http://catalog.main.gov';
     // or document.write to use a different stylesheet
     // document.write('<link type="text/css" rel="stylesheet" 
title="Main Style" media="screen" href="/screens/styles.css" />');
   }
   else if (yourLastPage == 'http://www.theothersite.gov') {
     // Use document.location to redirect user
     // document.location='http://catalog.other.gov';
     // or document.write to use a different stylesheet
     // document.write('<link type="text/css" rel="stylesheet" 
title="Other Style" media="screen" href="/screens/otherstyles.css" />');
   }
}

If your patrons can reach your site through more than one page I would 
advise using Javascript string functions to parse the domain or whatever 
portion of the address you wish.

Jonavon Wilcox
Programmer
University Libraries
Virginia Tech

Katie Wilson wrote:

> hi all
>
> I'm wonder if anyone on the list has been able to implement
> HTTP-REFERER with the Innovative Web OPAC.
>
> The State Library of New South Wales is moving through a multi-phase
> process
> of redeveloping its public facing web services.
>
> During parts of this phase there will be two separate sites that will
> host
> our initial OPAC search screens. These web sites will have
> significantly
> different designs.
>
> We would like to provide our clients with a seemless transition from
> the
> initial search OPAC screens to the OPAC results screens hosted on our
> Innovative
> server by detecting which site the client has been redirected from and
> presenting appropriately designed OPAC results screens using one of
> two
> cascading style sheet libraries based on the referring site address.
>
> We propose using the standard CGI environment variable called
> HTTP_REFERER
> which will enable us to load the CSS file appropriate for clients
> referred
> by site A or a separate one for clients referred by site B.
>
> Does the Innovative web server expose these standard CGI environment
> variables to the OPAC templates?  If so, what methods or variables does
> our
> web design team need to use to determine the value of these variables
> at run
> time?
>
> If not, is there another method, such a passing a value as a standard
> HTTP
> query string parameter which can be exposed to the OPAC templates?
>
> In addition, does Innovative's web server provide the equivalent of a
> SESSION
> scope for storing variables for the life of a client's session?
>
>
> thanks in advance
>
> regards
> Katie
>
> Katie Wilson
> Manager, Digital & Library Systems (Acting)
> electronic Library Services
> State Library of NSW
> Macquarie St,
> Sydney, NSW 2000
> Australia
> kwilson at sl dot nsw dot gov dot au 
> tel: +61.2.9273.1574
> fax: +61.2.9273.1268
> http://www.sl.nsw.gov.au/
>
>
>
> Dig in at Australia's most exciting research library http://www.atmitchell.com 
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