// Fly-in Advert Script
  // copyright Stephen Chapman, 14th June 2005
  // you may copy this code but please keep the copyright notice as well
  
  var speed = 16;
	var aDOM = 0, ieDOM = 0, nsDOM = 0;
	var stdDOM = document.getElementById;
	if (stdDOM) aDOM = 1;
else {
	ieDOM = document.all;
	if (ieDOM) aDOM = 1;
else {
	var nsDOM = ((navigator.appName.indexOf('Netscape') != -1)&& (parseInt(navigator.appVersion) ==4));
	if (nsDOM) aDOM = 1;
}
}
function xDOM(objectId, wS) {
	if (stdDOM) return wS ? document.getElementById(objectId).style: document.getElementById(objectId);
	if (ieDOM) return wS ? document.all[objectId].style: document.all[objectId];
	if (nsDOM) return document.layers[objectId];
}
function objWidth(objectID) {
	var obj = xDOM(objectID,0);
	if(obj.offsetWidth) return obj.offsetWidth;
	if (obj.clip) return obj.clip.width;
	return 0;
}
function objHeight(objectID) {
	var obj = xDOM(objectID,0);
	if(obj.offsetHeight) return obj.offsetHeight;
	if (obj.clip) return obj.clip.height;
	return 0;
}
function setObjVis(objectID,vis) {
	var objs = xDOM(objectID,1);
	objs.visibility = vis;
}
function moveObjTo(objectID,x,y) {
	var objs = xDOM(objectID,1);
	objs.left = x;
	objs.top = y;
}
function pageWidth() {
	return window.innerWidth != null? window.innerWidth: document.body != null? document.body.clientWidth: null;
}
function pageHeight() {
	return window.innerHeight != null? window.innerHeight: document.body != null? document.body.clientHeight: null;
}
function posLeft() {
	return typeof window.pageXOffset != 'undefined' ? window.pageXOffset: document.documentElement.scrollLeft? document.documentElement.scrollLeft: document.body.scrollLeft? document.body.scrollLeft: 0;
}
function posTop() {
	return typeof window.pageYOffset != 'undefined' ? window.pageYOffset: document.documentElement.scrollTop? document.documentElement.scrollTop: document.body.scrollTop?document.body.scrollTop: 0;
}
	var xxx = 0;
	var yyy = 0;
	var dist = distX = distY = 0;
	var stepx = 2;
	var stepy = 2;
	var ad = 'flyad';
function distance(s,e) {
	return Math.abs(s-e)
}
function direction(s,e) {
	return s>e?-1: 1
}
function rate(a,b) {
	return a<b?a/b: 1
}
function start() {
	xxx = -objWidth(ad)-10;
	yyy = 1;
	var eX = (pageWidth()-objWidth(ad))/2;
	var eY = (pageHeight()-objHeight(ad))/2;
	dist = distX = distance(xxx,eX);
	distY = distance(yyy,eY);
	stepx *= direction(xxx,eX) * rate(distX,distY);
	stepy *= direction(yyy,eY) * rate(distY,distX);
	moveit();
	setObjVis(ad,'visible');
	mover();
}
function moveit() {
	var x = (posLeft()+xxx) + 'px';
	var y = (posTop()+yyy) + 'px';
	moveObjTo(ad,x,y);
}
function mover() {
if (dist > 0) {
	xxx += stepx;
	yyy += stepy;
	dist -= Math.abs(stepx);
}
	moveit();
	setTimeout('mover()', speed);
}
function moveback() {
	dist = distX;
	stepx = -stepx;
	moveit();
	setTimeout('mover()', speed/2);
}
	window.onload = start;
	window.onscroll = moveit;