function Scroll_slow(flag, step) {
         Start_Scroll(flag, step);
         moves = setTimeout("Scroll_slow(" + flag + "," + step + ")", 10);
     }
     function Stop_Scroll() {
         clearTimeout(moves);
     }
     function Start_Scroll(flag, step) {
         try {
 
             jfbFrame.document.documentElement.scrollTop = (flag == 1) ? jfbFrame.document.documentElement.scrollTop + step : jfbFrame.document.documentElement.scrollTop - step;
         } catch (ex) { }
 
     }