var   block   =   document.all["newsBlock"]   
  block.insertAdjacentHTML("beforeEnd"   ,   block.children[0].outerHTML)   
  block.runtimeStyle.overflow =   "hidden"   
    
  setInterval(function()   
  {   
  block.scrollTop++   
  block.runtimeStyle.height =   block.children[0].offsetHeight   
  if   ((block.scrollTop   +   block.children[0].offsetHeight)   ==   block.scrollHeight) block.scrollTop   =   1   
  },100)