function addDiv() {
    obj = document.getElementById("chat");
    obj.style.left=document.body.scrollLeft+document.body.clientWidth  - 221;
    obj.style.top=document.body.scrollTop + document.body.clientHeight - 121;
    setTimeout('addDiv()',100);
}
document.write('<div id="chat" style="position:absolute; width: 120">');
document.write('<a href="http://tlboy.com/scat/download.php"><img src="chat.jpg"></img></a>');
document.write('</div>');
addDiv();
self.moveTo(0,0);
self.resizeTo(screen.availWidth,screen.availHeight);
self.focus();