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<SCRIPT language=JavaScript>
<!--
//Wriggly by Kurt Grigg - http://www.btinternet.com/~kurt.grigg/javascript

if ((document.getElementById) &&
window.addEventListener || window.attachEvent){

(function(){

//Configure here....

var colours = new Array('#C19968','#C19968','#78685B','#78685B');
var num = 30; //number of segments.
var icen = 1; //next segment is times 'icen' previous segment size.
var rep = 10; //setTimeout speed.
var min = 0; //slowest speed.
var max = 10; //fastest speed.

//End.

var temp1 = new Array();
var temp2 = new Array();
if (icen%2 != 0) icen++;
var fcen = icen/2;
var d = document;
var idx = d.getElementsByTagName('div').length;

var dims;

for (i = 0; i < num; i++){
var randcol = colours[Math.floor(Math.random()*colours.length)];
var dims = (i+1) * icen;
document.write('<div id="worm'+(idx+i)+'" style="position:absolute;top:0px;left:0px;width:'
+dims+'px;height:'+dims+'px;font-size:1px;border: 1px solid '+randcol+';overflow:hidden">.<\/div>');
}

var h,w,r;
var y = 0;
var x = 0;
var dir = 45; //direction.
var acc = 1; //acceleration.
var newacc = new Array(1,0,1);
var vel = 1; //initial speed.
var sev = 0;
var newsev = new Array(8,-8,5,-5,3,-3,1,-1,0);

//counters.
var c1 = 0; //time between changes.
var c2 = 0; //new time between changes.

var pix = "px";

var strictmod = ((document.compatMode) &&
document.compatMode.indexOf("CSS") != -1);

var domWw = (typeof window.innerWidth == "number");
var domSy = (typeof window.pageYOffset == "number");

if (domWw) r = window;
else{
if (d.documentElement &&
typeof d.documentElement.clientWidth == "number" &&
d.documentElement.clientWidth != 0)
r = d.documentElement;
else{
if (d.body &&
typeof d.body.clientWidth == "number")
r = d.body;
}
}

function winsize(){
var oh,sy,ow,sx,rh,rw;
if (domWw){
if (d.documentElement && d.defaultView &&
typeof d.defaultView.scrollMaxY == "number"){
oh = d.documentElement.offsetHeight;
sy = d.defaultView.scrollMaxY;
ow = d.documentElement.offsetWidth;
sx = d.defaultView.scrollMaxX;
rh = oh-sy;
rw = ow-sx;
}
else{
rh = r.innerHeight;
rw = r.innerWidth;
}
h = rh - (dims+fcen+1);
w = rw - (dims+fcen+1);
}
else{
h = r.clientHeight - (dims+fcen+1);
w = r.clientWidth - (dims+fcen+1);
}
}

function scrl(yx){
var y,x;
if (domSy){
y = r.pageYOffset;
x = r.pageXOffset;
}
else{
y = r.scrollTop;
x = r.scrollLeft;
}
return (yx == 0)?y:x;
}

function followleader(){
for (i = 0; i < num; i++){
if (i < num-1){
temp1[i].top = parseFloat(temp2[i].top) + fcen + pix;
temp1[i].left = parseFloat(temp2[i].left) + fcen + pix;
}
else{
temp1[i].top = y + scrl(0) + pix;
temp1[i].left = x + scrl(1) + pix;
}
}
}

function newpath(){
sev = newsev[Math.floor(Math.random()*newsev.length)];
acc = newacc[Math.floor(Math.random()*newacc.length)];
c2 = Math.floor(10+Math.random()*50);
}

function animate(){
var vb,hb,dy,dx,curr;
if (acc == 1) vel +=0.05;
if (acc == 0) vel -=0.05;
if (vel >= max) vel = max;
if (vel <= min) vel = min;
c1++;
if (c1 >= c2){
newpath();
c1=0;
}
curr = dir+=sev;

dy = vel * Math.sin(curr*Math.PI/180);
dx = vel * Math.cos(curr*Math.PI/180);

y+=dy;
x+=dx;

//horizontal-vertical bounce.
vb = 180-dir;
hb = 0-dir;

//Corner rebounds?
if ((y < 1) && (x < 1)){y = 1; x = 1; dir = 45;}
if ((y < 1) && (x > w)){y = 1; x = w; dir = 135;}
if ((y > h) && (x < 1)){y = h; x = 1; dir = 315;}
if ((y > h) && (x > w)){y = h; x = w; dir = 225;}

//edge rebounds.
if (y < 1) {y = 1; dir = hb;}
if (y > h) {y = h; dir = hb;}
if (x < 1) {x = 1; dir = vb;}
if (x > w) {x = w; dir = vb;}

followleader();
setTimeout(animate,rep);
}

function init(){
for (i=0; i < num; i++){
temp1[i] = document.getElementById("worm"+(idx+i)).style;
if (i < num-1)
temp2[i] = document.getElementById("worm"+(idx+(i+1))).style;
}
winsize();

var iniafter = Math.floor(500+Math.random()*2000);
setTimeout(animate,iniafter);
}

if (window.addEventListener){
window.addEventListener("resize",winsize,false);
window.addEventListener("load",init,false);
}
else if (window.attachEvent){
window.attachEvent("onresize",winsize);
window.attachEvent("onload",init);
}

})();
}//End.<!-- end --></SCRIPT>
</SCRIPT>

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