var obj_marquee = document.getElementById("banner_one");
var marquee_spd = 2300;
var step_c = 0;
function marquee_init() {
 var obj_unit = obj_marquee.firstChild;
 var n = Math.ceil(parseInt(obj_marquee.style.height) / obj_unit.offsetHeight);
 for(var i=0; i<n; i++) obj_marquee.appendChild(obj_unit.cloneNode(true));
 return;
}
function marquee_show() {
 var marquee_high = parseInt(obj_marquee.style.height);
 var step = marquee_high/10;
 if(obj_marquee.scrollTop >= obj_marquee.children[1].offsetTop) {
  obj_marquee.scrollTop = 0;
  marquee_show();
  return;
 }
 obj_marquee.scrollTop += step;
 if(step_c++ < 9) setTimeout("marquee_show()", 50);
 return;
}
marquee_init();
setInterval("step_c=0;setTimeout('marquee_show()',50)", marquee_spd);