<!--
var xPos = 20;
var yPos = document.body.clientHeight;
var step = 1;
var delay = 25;
var height = 0;
var Hoffset = 0;
var Woffset = 0;
var yon = 0;
var xon = 0;
var pause = true;
var interval;
var stay=0
var transp=100
img.style.top = yPos;
function checktime() {
stay= stay + delay
if (stay<13000 ){
changePos()
} else{

changePos()
'img.style.visibility="visible"'
}
}
function fade(){
if (transp>0) {
transp--;
aikang.filters.alpha.opacity=0 + transp; 
setTimeout("fade()",100); 
}
}
function changePos() {
width = document.body.clientWidth;
height = document.body.clientHeight;
Hoffset = img.offsetHeight;
Woffset = img.offsetWidth;
img.style.left = xPos + document.body.scrollLeft;
img.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 rs() {
interval = setInterval('checktime()', delay);
}
rs();
-->