Expect script question(Nested if)

Don't quite understand what you are talking about, please re-write your question in detail.

doing this in shell?

if {$variable} {
   ...
}

define expect script .. please
what programming are you are doing  ?
what language is the script ?

actually it's a unix based programming language called expect where for example you can do simple command line authoring
For this example I can telnet into the router and download the the configs..


for example:

#Telnet to the Ciscos
     spawn telnet $ciscohost
     expect {
           "word:"     {
               send "$password\r"
               expect ">" 
               send "enable\r$Enapwd\r"
               expect "#"
               send "term len 0\r"


               #Ok we're logged into the router
               #Now get the configuration
               set logfile "$logpath/cisco.$datestring/$ciscohost.$datestring.conf"
               log_file -noappend $logfile
               expect "#"
               send "wr t\r"
               expect "#"
               log_file
               send "\r"
               expect "#"
               #Now get the "show tech" information
               set logfile "$logpath/cisco.$datestring/$ciscohost.$datestring.tech"
               log_file -noappend $logfile
               send "show tech\r\r\r"
               expect "#"
               expect "#"
               log_file
               close
               wait
               }
          timeout {
               close
               wait
               }}
}                    
close $hostlist

The problem I'm having is I trying the run a program where it answers yes to all the questions and when it doesn't know the answer it should let the user answer it...sort of an if else statement...I don't know the syntax to use it in an expect script...