How to check for a trademark symbol in if condition in Reports10g

Hi ,

When I use chr(153) I am able to print the trademark symbol on the report when run using oracle concurrent program. However i would like to use it in the if condition to check if the column value contains the tm trademark symbol . There is a copyright column in the database which can contain either unregistered trademark symbol tm which I am able to print using chr(153) and the registered trademark symbol R with a circle which I am able to print using chr(174). However I want to check the value in the copyright column to see which of