How Can I Get A Site Search Engine - Not Google Search Engine

I have tried to put in several JavaScript's for a 'site search engine' into the HTML function but none of them are working and do not appear when I preview them. what am I doing wrong?... Please advise on how I can get a site search engine. I don't want the Google one. Thanks

This conversation is no longer open for comments or replies and is no longer visible to community members.