function $(id) { return document.getElementById(id); }

function addLoadEvent(func){
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function(){
oldonload();
func();
}
}
}
function getElementsByClassName(theName){
    var j = 0;
    var array = [];
    for(var i = 0;(e = document.getElementsByTagName("*")[i]); i++){
        if(e.className == theName){
            array[j] = e;
            j++;
        }
    }
    return array[0];
}
function moveElement(elementID,final_x,final_y,interval) {
  if (!document.getElementById) return false;
  if (!document.getElementById(elementID)) return false;
  var elem = document.getElementById(elementID);
  if (elem.movement) {
    clearTimeout(elem.movement);
  }
  if (!elem.style.left) {
    elem.style.left = "0px";
  }
  if (!elem.style.top) {
    elem.style.top = "0px";
  }
  var xpos = parseInt(elem.style.left);
  var ypos = parseInt(elem.style.top);
  if (xpos == final_x && ypos == final_y) {
return true;
  }
  if (xpos < final_x) {
    var dist = Math.ceil((final_x - xpos)/10);
    xpos = xpos + dist;
  }
  if (xpos > final_x) {
    var dist = Math.ceil((xpos - final_x)/10);
    xpos = xpos - dist;
  }
  if (ypos < final_y) {
    var dist = Math.ceil((final_y - ypos)/10);
    ypos = ypos + dist;
  }
  if (ypos > final_y) {
    var dist = Math.ceil((ypos - final_y)/10);
    ypos = ypos - dist;
  }
  elem.style.left = xpos + "px";
  elem.style.top = ypos + "px";
  var repeat = "moveElement('"+elementID+"',"+final_x+","+final_y+","+interval+")";
  elem.movement = setTimeout(repeat,interval);
}
function moveDown(elementID,final_x,final_y,interval){
  
   
  if (!document.getElementById) return false;
      if (!document.getElementById(elementID)) return false;
  if (!document.getElementById('focus_change_opacity_div')) return false;
  	  var elem = document.getElementById('focus_change_btn');
  var elem_back = document.getElementById('focus_change_opacity_div'); 
  if (elem.movement) {
   		 clearTimeout(elem.movement);
  		}
  if (!elem.style.left) {
    elem.style.left = "0px";
  }
  if (!elem.style.top) {
    elem.style.top = "270px";
  }
  
  var xpos = parseInt(elem.style.left);
  var ypos = parseInt(elem.style.top);
  if (xpos == final_x && ypos == final_y) {

return true;
}
  if (xpos < final_x) {
    var dist = Math.ceil((final_x - xpos)/10);
    xpos = xpos + dist;
  }
  if (xpos > final_x) {
    var dist = Math.ceil((xpos - final_x)/10);
    xpos = xpos - dist;
  }
  if (ypos < final_y) {
    var dist = Math.ceil((final_y - ypos)/10);
    ypos = ypos + dist;
  }
  if (ypos > final_y) {
    var dist = Math.ceil((ypos - final_y)/10);
    ypos = ypos - dist;
  }

  elem.style.top = ypos + "px";
  elem_back.style.top = ypos + "px";		
  var repeat = "moveDown('"+elementID+"',"+final_x+","+final_y+","+interval+")";
 
      elem.movement = setTimeout(repeat,interval);
 
}
function classNormal(){
var focusBtnList = $('focus_change_btn').getElementsByTagName('li');
for(var i=0; i<focusBtnList.length; i++) {
focusBtnList[i].className='';
}
}

function focusChange() {
$('focus_change').onmouseover = function(){atuokey = true;moveDown('focus_change_btn',0,270,5);};
$('focus_change').onmouseout = function(){atuokey = false};
var focusBtnList = $('focus_change_btn').getElementsByTagName('li');
focusBtnList[0].onmouseover = function() {
moveElement('focus_change_list',0,0,5);
classNormal()
focusBtnList[0].className='current'
}
focusBtnList[1].onmouseover = function() {
moveElement('focus_change_list',-502,0,5);
classNormal()
focusBtnList[1].className='current'
}
focusBtnList[2].onmouseover = function() {
moveElement('focus_change_list',-1004,0,5);
classNormal()
focusBtnList[2].className='current'
}
focusBtnList[3].onmouseover = function() {
moveElement('focus_change_list',-1506,0,5);
classNormal()
focusBtnList[3].className='current'
}
focusBtnList[4].onmouseover = function() {
moveElement('focus_change_list',-2008,0,5);
classNormal()
focusBtnList[4].className='current'
}
}

setInterval('autoFocusChange()', 5000);
var atuokey = false;
var atuo_time = 0;
var down_state = 0;
function autoFocusChange() {
if(atuokey)
{    
return;} 
var focusBtnList = $('focus_change_btn').getElementsByTagName('li');
for(var i=0; i<focusBtnList.length; i++) {
if (focusBtnList[i].className == 'current') {
var currentNum = i;
}
}
if (currentNum==0 ){
moveElement('focus_change_list',-502,0,5);
classNormal()
focusBtnList[1].className='current'
}
if (currentNum==1 ){
moveElement('focus_change_list',-1004,0,5);
classNormal()
focusBtnList[2].className='current'
}
if (currentNum==2 ){
moveElement('focus_change_list',-1506,0,5);
classNormal()
focusBtnList[3].className='current'
}
if (currentNum==2 ){
moveElement('focus_change_list',-2008,0,5);
classNormal()
focusBtnList[3].className='current'
}
if (currentNum==3 ){
moveElement('focus_change_list',0,0,5);
classNormal()
focusBtnList[0].className='current'
}
if(atuo_time == 2 && down_state == 0)
{
moveDown('focus_change_btn',0,350,5);
atuo_time == 0;
down_state == 1;	
}else
{
atuo_time++;	
}


}
function autoDownChange()
{
if(atuokey) return;
moveDown('focus_change_btn',0,350,10);
}
addLoadEvent(focusChange);