Caranya gampang ko....
kamu Copy Paste aja script di bawah ini :
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<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" type="text/javascript"></script>---------------------------------------------------------------------------------------------------------------
<script src="http://raezen.fileave.com/scrolltop.js" type="text/javascript"></script>
kalau sudah di "Copy",, kamu "Paste" persis dibawah kode : <head>
Selesai ^_^