Understanding CS(Referer)

I'm digging thru my server logs and am puzzled by inconsisant entries in the CS(Referer) field. I have an asp page that is being called from one page on my site (actully, it's being called from a Flash movie sitting in a page on my site...let's wait to see if that's relavent).

When i sort out the log and look at only those calls to this particular ASP I find the CS(Referer) is sometimes blank and sometimes contains the full url & queryString of itself. IOW, if the page in question is called (along with the query string:
http://www.juststeve.com/compliance/auditAnswer.asp?loginID=7975&uQzID=140722&AnswerID=&hasClicked=false&thisDate=Wed+Mar+24+18:44:38+GMT-0600+2004

Some of the browsers hitting my site (c-ip) will show a blank and some will spit that full url string back into the log. It seems obvious there's some client-side caching stuff going on in the user's network...i'm looking for more details on that.

thankx
--steve...
juststeveAsked:
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dmenardConnect With a Mentor Commented:
The referer is not completely reliable : some browsers have settings to let the user choose if she wants to send the referrer or not.
There are also some webs/utilities which will allow a user to do the same thing.
Last, one can always paste the full url in the location bar of the browser and hit your page without any referrer.
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dmenardCommented:
Thank you for accepting my answer : you gave me my first expert points (I'm new to EE)
Glad to help !
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