Shell Programming and Scripting

Hi I have below code in one of my shell script:

Code:

 
if [ $# -eq 0 ]; then fail $USAGE; fi
while getopts hz:r:t:dz: o
do
        case "$o" in
        h)      echo $USAGE ; exit 0;;
        r)      export REQ_ID="$OPTARG";;
        t)      TIMESPAN="$OPTARG";;
        d)      detail="true";;
        [?])    fail $USAGE;;
        esac
done
echo "MY TEST REQ ID:::::::"$REQ_ID

-r i am passing is "nbsbwwp|0|crpcltgapez/171.189.215.243|2010-01-08 04:14:26.345@2010-01-08 04:14:26.345|XMLCLIENT"

Even tho it is in "", REQ_ID variable contains only "nbsbwwp|0|crpcltgapez/171.189.215.243|2010-01-08" i.e. only till first blank. I want whole string to be passed to REQ_ID from $OPTARG.

This is quite surprising.
Please help !