MapServer CGI and parameter values

[Xin]

Hi,

I'm looking to use MapServer cgi exclusively without touching MapScript, as 
this will be easier to work with. I need to read parameters values, such as 
zoomdir, ext, layers etc. from the previous call to mapserver. Am I right 
say the only way of doing this is reading the html page output from 
mapserver? i.e. to get the img link, read what [img] has been replaced with. 
Or is there another way.

Thanks for your help,
Xin
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