There are way too many problems here. Yes, one of them is your line "if( SearchBuff( $decide == 1 ) ) {...". Since you're using global variables, you would fix that problem by calling SearchBuff() first, and then say, "if( $decide == 1 ) {.....". But let me run down a list of things you really should do. Ok, they're not necessary, but may be good ideas if you want it done right:

• Scrap this code and start over, writing a version that complies with strictures. In other words, use lexical variables, not globals, use strict, use warnings.
• Use LWP::Simple. Why are you calling an external process to grab a webpage when you can just use LWP::Simple like this: "my $webpage = get( 'http://your.site.here' );".
• No need to save the web page to disk if you use LWP::Simple. You can just start reading it from a scalar variable.
• Did I mention using strict and using warnings?

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