var pos=150;
 function Scroll(){
          
          if (!document.getElementById) return;
          obj=document.getElementById("thetext");
          pos-=1;
          if (pos< 0-obj.offsetHeight) return ;
          obj.style.top=pos;
          window.setTimeout("Scroll();",60);
          
          if (pos> 0-obj.offsetHeight) return;
          pos=150;


 }