Cloud erp-fusion - Modify AP ExternalCheck.rtf- With dynamic signature based on BANKACCOUNTNAME

If BANKACCOUNTNAME ='a' then Sign1 pic and Sign2 pic

If BANKACCOUNTNAME ='b' then Sign3pic , Sign4 pic and Sign6 pic

If BANKACCOUNTNAME ='c' then Sign5pic

so trying to use a subtemplate ..which have 3 templates -<?Template:signature1?><?Template:signature2?> <?Template:signature3?>..

syntax:

<?Template:signature1?>

<?param:p_bank;string(’')?>

<?if:$p_bank =’a'?>

Sign1 pic

<?end if?>

<?if:$p_bank=’b'?>

Sign3pic

<?end if?>

<?if:$p_bank=’c'?>

sign5

<?end if?>

<?end template?>

<?Template:signature2?>

<?param:p_bank;string(’')?>

<?if:$p_bank=’a'?>

Sign2 pic

<?end if?>

<?if:$p_bank=’b’?>

Sign4 pic

<?end if?>

<?end template?>