Problem With replacing templates

[Rahul91]

i was thinking i have mistaken in but i was wrong there is problem with function.. i am trying to modify "headerinclude" template, here is my code:

find_replace_templatesets('headerinclude', "#".preg_quote('{$stylesheets}')."#", 	'{$stylesheet} my script');

after activating plugin.. its activated successfully but when i view my forum. it make something like that.. [see attachment]
i tried it so many times. everytime same problem

Please solve my problem... i need this in upgrading my plugin "show referral". i am trying to add jQuery
thanks

[.m.]

look for typo (typing mistake) {$stylesheets}

[Rahul91]

look for typo (typing mistake) {$stylesheets}

thanks i just found it...