// JavaScript Document
function slideLine(box,stf,delay,speed,h)   
{   
  var slideBox = document.getElementById(box);   
  var delay = delay||1000,speed = speed||20,h = h||20;   
  var tid = null,pause = false;   
  var s = function(){tid=setInterval(slide, speed);} 

  var slide = function(){   
    if(pause) return;   
    slideBox.scrollTop += 1;   
    if(slideBox.scrollTop%h == 0){   
      clearInterval(tid);   
      slideBox.appendChild(slideBox.getElementsByTagName(stf)[0]);   
      slideBox.scrollTop = 0;   
      setTimeout(s, delay);   
    }   
  }   
  slideBox.onmouseover=function(){pause=true;}   
  slideBox.onmouseout=function(){pause=false;}   
  setTimeout(s, delay);   
}