How To Add Condition Checking for data Contained in a field?

In EBS, we currently have a DFF that contains a series of data; i.e. 2, 15, 20, 45..... and so on.  We want to place a graphic in our rtf file based on the dff containing 45.    So, instead of equal we need a LIKE that works:

Example:

<?if:ATTRIBUTE1 = '45'?> -- this would never find the 45 but doesn't error

we need

<?if:ATTRIBUTE1 LIKE '%45%'?>  -- xml does not recognize this at all and error's

How can this be done in an RTF?