var srlData_i = document.getElementById? document.getElementById("Data_i") : document.all.Data_i;
var hgtData_i = srlData_i.offsetHeight;

function Scroll_up_i(btnSpeed){

  if(btnSpeed == 1){ Speed_i = 3;}
  if (parseInt(srlData_i.style.top) <= 0){
    srlData_i.style.top = parseInt(srlData_i.style.top) + Speed_i + "px";}

  upTimer_i=setTimeout("Scroll_up_i()",30);
}

function Scroll_dwn_i(btnSpeed){

  if(btnSpeed == 1){ Speed_i = 3;}
  if (parseInt(srlData_i.style.top) >= (hgtData_i*(-1) + 150)){
    srlData_i.style.top = parseInt(srlData_i.style.top) - Speed_i + "px";}

  dwnTimer_i = setTimeout("Scroll_dwn_i()",30);
}

function getHgtData_i(){
  hgtData_i = srlData_i.offsetHeight;
}