// JScript File
/* ATL HJAIA2008 JavaScript file v1.0
Written by ChaoLi (webmaster@atlanta-airport.com), Raul Romero
Copyright (c) 2008-2009 City of Atlanta, Department of Aviation (http://www.atlanta-airport.com)
Date: 2009-02-01
Purposes for this file: to zoom link photos like FishEye
Inspired by http://www.theplaceforitall.com/googlex/ GoogleEx
Here is the simple how-to for updating
(1), make changes on b=new z(x) and s=new z() lines
(2), make sure the onLoad="ae()" in the tag
(3), update the origianl images in controls/wucFishEye.ascx file
(4), keep all fish eye images in /images/fisheyes/ folder
*/
k=document;
v=Date;
x=false;
z=Array;
af=Math.floor;
ag=RegExp;
b=new z(5);
s=new z("null","opt1","opt2","opt3","opt4");
aa=new z(4);
ab=10;
t=0;
u=0;
n=0;
o=new v();
h=5;
m=385;
c=0;
w=x;
var title;
var firstHoverOccurred=x;
m=385;
p=0;
function d(ac) { c = ac; o = new v(); setTimeout("gidle()", 10);
if (title.style.visibility!="visible") title.style.visibility="visible";
}
function e(ac) { c = 0; w = x; o = new v(); setTimeout("gidle()", 20);
if (title.style.visibility!="hidden") title.style.visibility="hidden";
}
function ae() {
for (var j = 1; j < b.length; j++)
{ b[j] = 225; }
title = k.getElementById('imageTitle');
for (i = 0; i < b.length; i++) {
aa[i] = new Image();
aa[i].src = "images/fisheye/" + s[i + 1] + ".gif"; //change this
}
setTimeout("gidle()", 57);
}
function gidle() {
var l = 0; for (var i = 1; i < b.length; i++) {
var imagename = "image" + i;
var imageElem = k.getElementById(imagename);
if (c != i) {
if (b[i] > 225) {
b[i] -= h;
if (b[i] <= 225)
{
b[i] = 225;
imageElem.src = "images/fisheye/"+ s[i] + "_small.gif"; } //change this
if (b[i] < 225) {
alert(b[i]); }
imageElem.width = b[i];
imageElem.height = b[i]*.44;
if (c == 0) {
var g = af(255 - 255 * (b[i] - 225) / 225);
// title.style.color = "rgb(" + g + "," + g + "," + g + ")"; //no color change at this moment
}
p = 1;
}
l += b[i];
}
}
if (c != 0 && b[c] < 293) {
imagename = "image" + c;
imageElem = k.getElementById(imagename);
if (w == x) {
w = true;
if (c < 6) {
var y = 360 - (c - 1) * 293;
//title.innerHTML = k.getElementById(imagename).alt + '
';//disable the variable location
title.innerHTML = k.getElementById(imagename).alt ;//+ '';
}
else {
var y = (c - 7) * 293 + 293;
//title.innerHTML = '' + k.getElementById(imagename).alt;//disable the variable location
title.innerHTML = k.getElementById(imagename).alt;
}
}
b[c] += h; p = 1;
if (b[c] > 293) { b[c] = 293; }
l += b[c];
if (l < m) { b[c] += m - l;
if (b[c] > 70) { b[c] = 70; }
l = m;
}
var g = af(255 - 255 * (b[c] - 225) / 225);
//title.style.color = "rgb(" + g + "," + g + "," + g + ")";//no color change at this moment
if (b[c] < 225) { b[c]=255; }
imageElem.width = b[c];
imageElem.height = b[c] * .444;
k.getElementById(imagename).src = "images/fisheye/" + s[c] + ".gif"; //change this
}
m = l;
var ad = new v();
ab = ad.getTime() - o.getTime();
o = ad;
t += ab;
u++;
n = t / u;
h = 5;
if (u > 4) {
if (n > 30)
{ h = 10; }
if (n > 60)
{ h = 15; }
if (n > 90)
{ h = 20; }
}
if (p)
{ setTimeout("gidle()", 20);
p = 0
}
}