var eventTimer;    
var restScroll=0; 

function Scroll(base,move){
    
    var obj_base = getElemPosition(base);
    
    var elem_move = document.getElementById(move);
    var obj_move = getElemPosition(elem_move);
    restScroll = obj_move.y-obj_base.y;
    eventTimer = setInterval(setScrollPosition,10);
}

function setScrollPosition() {
    var moveValue=0;
    
    if(Math.abs(restScroll)>80){
        moveValue = (restScroll>0)?20:-40;
    }else{
        moveValue = Math.round(restScroll/4);
    }
    parent.scrollBy(0,moveValue);
    restScroll = (restScroll>0)?restScroll-moveValue:restScroll-moveValue;
    if(moveValue==0){
        clearInterval(eventTimer);
        restScroll=0;
    }
}

function getElemPosition(elem) {
    var obj = new Object();
    obj.x = elem.offsetLeft;
    obj.y = elem.offsetTop;
    while(elem.offsetParent) {
        elem = elem.offsetParent;
        obj.x += elem.offsetLeft;
        obj.y += elem.offsetTop;
    }
    return obj;
}


function SmoothScroll(targetID){
  if( !document.getElementById ) {return true;}
  var step=10;  
  var max=400;  
  var accel=4; 
  var interval=30;
  var current_y = document.body.scrollTop  || document.documentElement.scrollTop;
  var element=document.getElementById(targetID);
  if (!element){return true;}
  var target_y = 0;
  for (i = element;i.offsetParent;i=i.offsetParent ){
    target_y += i.offsetTop;
  }
  var count=0;
  if ( current_y > target_y ){ step = -(step); accel = -(accel);}
  var timerid = setInterval( function(){
    if (step<max) step += (count*accel);
    if ( Math.abs(current_y-target_y) < Math.abs(step) ){
      window.scrollTo((document.body.scrollTop  || document.documentElement.scrollTop),target_y);
      clearInterval(timerid);
      return false;
    }else{
      window.scrollBy(0,step);
      current_y += step;
      count++;
    }
  },interval);
  return false;
}