// ????

var xPos = 20;
var yPos = document.body.clientHeight;
var step = 1;
var delay = 30;
var height = 0;
var Hoffset = 0;
var Woffset = 0;
var yon = 0;
var xon = 0;
var pause = true;
var interval;
document.all.dv1.style.top = yPos;
function changePos() {
width = document.body.clientWidth;
height = document.body.clientHeight;
Hoffset = dv1.offsetHeight;
Woffset = dv1.offsetWidth;
document.all.dv1.style.left = xPos + document.body.scrollLeft;
document.all.dv1.style.top = yPos + document.body.scrollTop;
if (yon) {
yPos = yPos + step;
}
else {
yPos = yPos - step;
}
if (yPos < 0) {
yon = 1;
yPos = 0;
}
if (yPos >= (height - Hoffset)) {
yon = 0;
yPos = (height - Hoffset);
}
if (xon) {
xPos = xPos + step;
}
else {
xPos = xPos - step;
}
if (xPos < 0) {
xon = 1;
xPos = 0;
}
if (xPos >= (width - Woffset)) {
xon = 0;
xPos = (width - Woffset);
}
}
function start() {
interval = setInterval('changePos()', delay);
}
start();


///  1??? ////
init();
function hiddenLayer(layerName) {
  eval(layerName).style.visibility = "hidden";
  eval("Close_" + layerName).style.visibility = "hidden";
}
function init() {
  LeftLayer.style.posTop = document.body.clientHeight/2 - parseInt(250,10)/2;
  LeftLayer.style.visibility = "visible";
  Close_LeftLayer.style.posTop = document.body.clientHeight/2 - parseInt(250,10)/2;
  Close_LeftLayer.style.visibility = "visible";
  RightLayer.style.posTop = document.body.clientHeight/2 - parseInt(250,10)/2;
  RightLayer.style.visibility = "visible";
  Close_RightLayer.style.posTop = document.body.clientHeight/2 - parseInt(250,10)/2;
  Close_RightLayer.style.visibility = "visible";
  MoveLayer();
}
function MoveLayer() {
  LeftLayer.style.posTop = document.body.scrollTop + document.body.clientHeight/2 - parseInt(250,10)/2 - (document.body.scrollTop + document.body.clientHeight/2 - parseInt(250,10)/2 - LeftLayer.style.posTop)*.40;
  LeftLayer.style.posLeft =0;
  Close_LeftLayer.style.posTop = document.body.scrollTop + document.body.clientHeight/2 - parseInt(250,10)/2 - (document.body.scrollTop + document.body.clientHeight/2 - parseInt(250,10)/2 - LeftLayer.style.posTop)*.40;
  Close_LeftLayer.style.posLeft = 0;
  RightLayer.style.posTop = document.body.scrollTop + document.body.clientHeight/2 - parseInt(250,10)/2 - (document.body.scrollTop + document.body.clientHeight/2 - parseInt(250,10)/2 - document.all.RightLayer.style.posTop)*.40;
  RightLayer.style.posLeft = document.body.clientWidth - parseInt(90,10) - 0;
  Close_RightLayer.style.posTop = document.body.scrollTop + document.body.clientHeight/2 - parseInt(250,10)/2 - (document.body.scrollTop + document.body.clientHeight/2 - parseInt(250,10)/2 - document.all.RightLayer.style.posTop)*.40;
  Close_RightLayer.style.posLeft = document.body.clientWidth - 13;
  setTimeout("MoveLayer();", 10);
}


//??
 //var speed=1
 //demo2.innerHTML=demo1.innerHTML
 // function Marquee(){
  //if(demo2.offsetWidth-demo.scrollLeft<=0)
  //demo.scrollLeft-=demo1.offsetWidth
  //else{
  //demo.scrollLeft++
  //}
 // }
  //var MyMar=setInterval(Marquee,speed)
 // demo.onmouseover=function() {clearInterval(MyMar)}
  //demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}