Switching paramethers based on conditions

Hi There,

I need to switch parameter used based on condition

like

if[ condition] {

parameter=parameter1;}

else {

parameter=parameter2;}

to use further in the script.

web_submit_data("tffcweb.dll",
                 "Name=UN", "Value={parameter}", ENDITEM,
                  LAST);

where value of parameter equals value of parameter 1 or parameter 2 based on condition.

so far I was able to find solution using only conversion into string like lr_save_string(strParam,"Value={parameter1}");

web_submit_data("tffcweb.dll",
                 "Name=UN", strParam, "ENDITEM,
                  LAST);

I'd like to find route to work stricly with parameters, rather then going to string path. Any ideas are highly appreciated.

thanks!