lcd menu problems

[xxxxxx]

helllo

here is my problem, i got the posttemp variable declared like this

posttemp var byte

now i want to change the value of the variable like this

if menu = 2 then 
posttemp=$0AF0
    LCDOUT $FE,1, "Max temperatura:"
    lcdout $FE,$c0,128, "28.00 C"
    pause 2000
endif

if menu = 3 then 
posttemp=$0BB8
    LCDOUT $FE,1, "Max temperatura:"
    lcdout $FE,$c0,128, "30.00 C"
    pause 2000
endif

and then compare posttemp like this

if temp >= posttemp then gosub s3

but this isn't working, program is compiled without erors, everythig is working fine, but my program gosub to s3 ever time, no matter if the condition is true!

and if i put it this way

if temp >= $0AF0 then gosub s3

then everything is working just fine but i want to change value $0AF0 like in above not working examplel

thx in advance

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