Programming :: Certain Book Search - Checking Of Case Insensitive

I am trying to do a search for the certain books, and I am trying to make it case insensitive. what I have come up with so far is this :

Code:
Database.txt
RETARDED MONKEY:RACHEAL ABRAHAML:30:30:20
GOLD:FATIN:23.20:12:3
StUPiD:JERLYN:20:40:3

Code:
echo -n "Title: "
read Title
echo -n "Author:"
read Author
echo ""
valuecheck='grep -i "$Title" Database.txt | grep -i "$Author" | awk -F":" '{ print $1}''
echo $valuecheck
if [ $Title = $valuecheck ] ; then
echo "HOHOHO"
else
echo "too bad"
fi

The issue which I am having is that, when it does the search for the correct row to be inputted into valuecheck, it will input the value as written in the database, which is in Uppercase. For this case, if I type in stupid for $Title and jerlyn for $Author, it searches the correct row, but the awk will print "STUPID" into the variable as that is what is written in the database. So how can I make my if statement case insensitive? Currently it reads like this:

Code:
if [ $Title = $valuecheck ] ; then
which means
if [stupid = StUPiD ] ; then

How can I make the if statement it case insensitive to allow it to display "HOHOHO"