Programming :: Cannot Get Conditional Statements To Work In XDialog/Dialog

I cannot seem to get if else statements to work. if $choice == Dog then i want it to say "you selected Dog" The variable choice has the value Dog in it as proved at the end by echo "yes $choice is $choice" following the error Code: ./test.sh: 37: [$choice: not found How do i get the conditional statement to work? What's wrong here? This is the full script:

Code:

#! /bin/sh
: ${DIALOG=dialog}
: ${DIALOG_OK=0}

[code]....