unexpected "then" expecting "done" in dash : how will I insert an if condition inside a for loop in dash?

I'm using dash and I need to create CGI script that will parse the query string and save each value to a variable

OLDIFS=$IFS                
// use & as delimeter
IFS='&'

//this will loop the queryString variable               
for line in $queryString;  
do     
//check if the key = action, if the condition was satisfied it will save the line to a variable..
//if the key is equal to type etc. etc.                                                 
        echo "{$line,1}"                                                   
        if[{$line,1}="action="]
                then
                cgi_action={$line,8}
        elif[{$line,1}="type="]
                then
                cgi_type={$line,6}                                  
        fi                       
done                             
IFS=$OLDIFS        

Im sure that I have errors to get the substring of the line (or string). but the question is the for loop is already expecting the done keyword. What's the correct way to write an if condition inside for loop in dash shell scripting.

Additional info, im using ubuntu 14.04,