var pos = -1;
var img = null;
var endpos = 0;
var windowSize = 0;
var timer = null;
function updateLocation() {
if(pos>endpos) {
pos-=60;
img.style.left = pos + "px";
}
}
function startMoving(ID, end) {
img = document.getElementById(ID);
img.style.position = "absolute";
endpos = end;
pos = windowSize + 200;
timer = setInterval('updateLocation()', 50);
}
function stopMoving() {
img.style.left = windowSize + 200 + "px";
clearInterval(timer);
}
function init(img1, img2) {
windowSize = window.screen.width;
img1_img = document.getElementById(img1);
img2_img = document.getElementById(img2);
img2_img.style.position = "absolute";
img1_img.style.position = "absolute";
img1_img.style.left = windowSize + img1_img.width + "px";
img2_img.style.left = windowSize + img2_img.width + "px";
}
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