//_____________page top ______________

sc_int=0;
function page_top(){
	doc_sctop = document.body.scrollTop;
	if(doc_sctop > 250) sc_int=50;
		else sc_int = doc_sctop/5;
	doc_sctop -= sc_int;
		if(sc_int < 1) doc_sctop=0;
	scroll(0,doc_sctop);
		if(doc_sctop > 0) setTimeout("page_top()",3);
}