onclick or href for "moving" object?

[Sleeping Troll]

The following code is the javascript which moves the "orbs" around at this site...
http://huduzu.trollnest.com
I hope it loads for you, having some hosting issues.
What I want to do is use the onclick event or href with the orbs, but can't seem to do it... is it a single thread issue?
P.S. IE only right now.

var numballs=50; //number of balls
var Gravity=0; //strength of gravity
var InitialVelocity=7; //initial ball speed
var BoxDepth; //box depth
var wallcollisions=0; //wall collisions 1=on, 0=off
var ballcollisions=1; //ball collisions 1=on, 0=off
var trails=0; //length of ball trail
var EyeDistance; //perspective:distance of eye from box centre
var ScreenDistance; //perspective:distance of screen from box centre
var EyeScreenDistance;
var BoxWidth,BoxHeight,BoxDepth,cw,ch;
var ballsize,ballsize2;
var xmin,ymin,xmax,ymax,zmin,zmax;
var i,im,theta;
var collisions=new Array();
var collisioncollection= new Array();
var VelocityX=new Array();
var VelocityY=new Array();
var VelocityZ=new Array();
var PositionX=new Array();
var PositionY=new Array();
var PositionZ=new Array();
var o=new Array();
var cln=new Array();
var twa;
var eps=.01;
function init(){
cw=getClientWidth();
ch=getClientHeight();
BoxDepth=ch;
EyeDistance=ch;
ScreenDistance=ch/2;
EyeScreenDistance=EyeDistance-ScreenDistance;
ballsize=parseInt(ballimg.width)/2;
if (ballsize<1)ballsize=1;
ballsize2=4*ballsize*ballsize;
for(i=0;i<numballs*2;i++)collisioncollection.push(new collision(container, ballcollisionimg.src));
function getClientWidth() {
return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientWidth:document.body.clientWidth;
}
function getClientHeight() {
return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientHeight:document.body.clientHeight;
}
BoxWidth=cw;
BoxHeight=ch/2;
bgw=BoxWidth/2;
bgh=BoxHeight;
container.style.width=cw/2;
container.style.height=ch/2;


xmax=BoxWidth-ballsize;
ymax=BoxWidth-ballsize;
zmax=BoxDepth-ballsize;
xmin=-xmax;
ymin=-ymax;
zmin=-zmax;

resize();

for(i=0;i<numballs;i++){
cln[i]=new Array;
for(j=0;j<numballs;j++)cln[i][j]=0;
PositionX[i]=xmin;
PositionY[i]=ymin;
PositionZ[i]=zmin;

theta=Math.random();
BoxWidthi=Math.asin(Math.random());
//if(Math.random()>0.5)BoxWidthi=-BoxWidthi;
VelocityX[i]=InitialVelocity*Math.cos(theta)*Math.cos(BoxWidthi);
VelocityY[i]=InitialVelocity*Math.sin(theta)*Math.cos(BoxWidthi);
VelocityZ[i]=InitialVelocity*Math.sin(BoxWidthi);

o[i]=new ball(ballsize,ballimg.src,container)
o[i].move(PositionX[i],PositionY[i],PositionZ[i]);
}
document.body.onresize=resize;
setInterval("anim();",50);
}

function anim(){
var i;
for(i in collisions)collisions[i].anim();
recyclecollisions();
updateballs();
}

function recyclecollisions(){
//active collisions can finish in any order, so cannot just thwacEyeScreenDistanceool.push(collisions.shift())
var j,i=0;
var nl=collisions.length;
while(i<nl){
if(collisions[i].f<0){
collisioncollection.push(collisions[i]);
for(j=i;j<nl-1;j++)collisions[j]=collisions[j+1];
nl--;
}
else{
i++;
}
}
j=collisions.length-nl;
for(i=0;i<j;i++)collisions.pop();
}

function moveball(x,y,z){
var i,j;
var k=EyeScreenDistance/(EyeDistance-z);
var bs=ballsize*k;
if (bs<1)bs=1;

this.is.width=2*bs;
this.is.height=2*bs;
this.is.left=bgw+k*x-bs;
this.is.top=bgh+k*y-bs;
}

function ball(r,imgsrc,container){
var i,b;
this.trail=new Array();
this.tpos=-1;
b=document.createElement("<img src='"+(imgsrc)+"' style='position:absolute;left:-10000px;top:20px;width:"+(2*ballsize)+"px;height:"+(2*ballsize)+"px;' >");
container.appendChild(b);
this.is=b.style;
this.move=moveball;
}

function collisioncollision(){
this.f-=this.opdec;
if(this.f<0){
this.imf.enabled='false';
if(this.type==1)this.immf.enabled='false';
this.is.left=-10000;
}
else{
this.imf.opacity=Math.floor(Math.max(0,this.f));
}
}

function setcollision(x0,y0,z0,x1,y1,z1,v,img,maxopacity,opdec){
var tx, ty, cp, psp, sp, sw, sq, sh;
var k,ts,bs;
var twk;
var w=img.width;
var h=img.height;
var p=w/2;
var q=h/2;

if(collisioncollection.length>0){
twk=collisioncollection.pop();
twk.im.src=img.src;
twk.opdec=opdec;
twk.f=15+Math.min(maxopacity-15,Math.floor(maxopacity*v/InitialVelocity));

tx=(x0+x1)/2;
ty=(y0+y1)/2;
tz=(z0+z1)/2;
k=EyeScreenDistance/(EyeDistance-tz);

angle=Math.atan2(y1-y0,x1-x0);

cp=(z1-z0)/(2*ballsize);
psp=Math.sqrt((x1-x0)*(x1-x0)+(y1-y0)*(y1-y0))/(2*ballsize);
yf=Math.abs((EyeScreenDistance/2)*(((tx+cp)/(EyeDistance-tz-psp))-((tx-cp)/(EyeDistance-tz+psp))));

st=Math.sin(angle);
ct=Math.cos(angle);
twk.immf.M11=ct*yf;
twk.immf.M12=-st*k;
twk.immf.M21=st*yf;
twk.immf.M22=ct*k;
sp=yf*p;
sw=yf*w;
sq=k*q;
sh=k*h;
twk.is.left=bgw+k*tx-(st*((st>0)?sh-sq:-sq)+ct*((ct>0)?sp:sp-sw));
twk.is.top=bgh+k*ty-(st*((st>0)?sp:sp-sw)+ct*((ct>0)?sq:sq-sh));
twk.is.zIndex=tz*100;
twk.immf.enabled='true';
twk.imf.enabled='true';
twk.imf.opacity=twk.f;
collisions.push(twk);
}
}

function collision(ctnr, imgsrc){
this.f=0;
this.n=0;
this.opdec=100;
this.x=0;this.y=0;this.z=0;
b=document.createElement("<img onclick='init()' src=\""+imgsrc+"\" style=\"border:0px solid red;position:absolute;left:-10000px;top:20px;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=50)progid:DXImageTransform.Microsoft.Matrix(sizingMethod='auto expand')\" >");
ctnr.appendChild(b);
this.im=b;
this.is=b.style;
this.imf=b.filters.item(0);
this.immf=b.filters.item(1);
this.anim=collisioncollision;
}
function UpdateBall(){}
function updateballs(){
/////////////////////////////////////////////////////////////
// Based on the fluid simulation by Peter Birtles //
// http://astronomy.swin.edu.au/pbourke/modelling/fluid/ //
// //
// Javascript conversion evolved January 2002 //
// 3D conversion and 'energy leak' plugged 10/06/2004 //
/////////////////////////////////////////////////////////////
var a,b,d,VelocityXa,VelocityYa,VelocityZa,VelocityXb,VelocityYb,VelocityZb,nx,ny,nz,cdx,cdy,cdz,dd,m,cosam,cosamx,cosamy,cosamz,ddx,ddy,ddz;
for(a=0; a<numballs; a++){
for(b=(a+1); b<numballs; b++){ //Note:The original iterated both a and b from 1 to numballs, skipping the a=b case
d = (PositionX[a]-PositionX[b])*(PositionX[a]-PositionX[b])+(PositionY[a]-PositionY[b])*(PositionY[a]-PositionY[b])+(PositionZ[a]-PositionZ[b])*(PositionZ[a]-PositionZ[b]);
if (d < ballsize2){
if(cln[a][b]==0){
cln[a][b]=1;
d = Math.sqrt(d);
VelocityXa= VelocityX[a];VelocityYa=VelocityY[a];VelocityZa=VelocityZ[a];VelocityXb=VelocityX[b];VelocityYb=VelocityY[b];VelocityZb=VelocityZ[b];
nx=PositionX[b]-PositionX[a];
ny=PositionY[b]-PositionY[a];
nz=PositionZ[b]-PositionZ[a];
if (Math.abs(d)>0.0001){
cdx=nx/d;cdy=ny/d;cdz=nz/d;
m = Math.sqrt(VelocityXa*VelocityXa+VelocityYa*VelocityYa+VelocityZa*VelocityZa);
if (Math.abs(m)>0.0001){
cosam = (cdx*VelocityXa+cdy*VelocityYa+cdz*VelocityZa);
cosamx=cosam*cdx;
cosamy=cosam*cdy;
cosamz=cosam*cdz;
VelocityXa -= cosamx;
VelocityYa -= cosamy;
VelocityZa -= cosamz;
VelocityXb += cosamx;
VelocityYb += cosamy;
VelocityZb += cosamz;
}
if(ballcollisions==1)setcollision(PositionX[a],PositionY[a],PositionZ[a],PositionX[b],PositionY[b],PositionZ[b],m*cosam, ballcollisionimg,100,20);
m = Math.sqrt(VelocityX[b]*VelocityX[b]+VelocityY[b]*VelocityY[b]+VelocityZ[b]*VelocityZ[b]);
if (Math.abs(m) >0.0001){
cosam = (cdx*VelocityX[b]+cdy*VelocityY[b]+cdz*VelocityZ[b]);
cosamx=cosam*cdx;
cosamy=cosam*cdy;
cosamz=cosam*cdz;
VelocityXa += cosamx;
VelocityYa += cosamy;
VelocityZa += cosamz;
VelocityXb -= cosamx;
VelocityYb -= cosamy;
VelocityZb -= cosamz;
}
}
VelocityX[a]=VelocityXa;VelocityY[a]=VelocityYa;VelocityZ[a]=VelocityZa;VelocityX[b]=VelocityXb;VelocityY[b]=VelocityYb;VelocityZ[b]=VelocityZb;
}
}
else{
cln[a][b]=0;
}
}
}
//apply boundaries (update images here)
for(a=0; a<numballs; a++){
if (PositionX[a]<=xmin){
PositionX[a]=2*xmin-PositionX[a];
VelocityX[a] = -VelocityX[a];
if(wallcollisions==1)setcollision(xmin,PositionY[a],PositionZ[a]-eps,xmin-2*ballsize,PositionY[a],PositionZ[a]-eps,Math.abs(VelocityX[a]),wallcollisionimg,30,4)
UpdateBall(a)
}
if (PositionX[a]>= xmax){
PositionX[a]=2*xmax-PositionX[a];
VelocityX[a] = -VelocityX[a];
if(wallcollisions==1)setcollision(xmax,PositionY[a],PositionZ[a]-eps,xmax+2*ballsize,PositionY[a],PositionZ[a]-eps,Math.abs(VelocityX[a]),wallcollisionimg,30,4)
UpdateBall(a)
}
if (PositionZ[a]<= zmin){
PositionZ[a]=2*zmin-PositionZ[a];
VelocityZ[a] = -VelocityZ[a];
if(wallcollisions==1)setcollision(PositionX[a],PositionY[a],zmin-eps,PositionX[a],PositionY[a],zmin-eps-2*ballsize,Math.abs(VelocityZ[a]),wallcollisionimg,30,4)
UpdateBall(a)
}
if (PositionZ[a]>= zmax){
PositionZ[a]=2*zmax-PositionZ[a];
VelocityZ[a] = -VelocityZ[a];
if(wallcollisions==1)setcollision(PositionX[a],PositionY[a],zmax+eps,PositionX[a],PositionY[a],zmax+eps+2*ballsize,Math.abs(VelocityZ[a]),wallcollisionimg,30,4)
UpdateBall(a)
}
}
//integrate accelerations and velocities
for(a=0; a<numballs; a++){
o[a].move(PositionX[a],PositionY[a],PositionZ[a]);
orPositionY=PositionY[a];
PositionX[a] += VelocityX[a];
PositionY[a] += VelocityY[a]+ Gravity/2;
PositionZ[a] += VelocityZ[a];
orVelocityY=VelocityY[a];
VelocityY[a] += Gravity;
if (PositionY[a]<= ymin){
if(Gravity>0.0000001){
ti=(-orVelocityY-Math.sqrt(orVelocityY*orVelocityY-2*Gravity*(orPositionY-ymin)))/Gravity;
vi=orVelocityY+Gravity*ti;
PositionY[a]=ymin-vi*(1-ti)+0.5*Gravity*(1-ti)*(1-ti);
VelocityY[a]=-vi+Gravity*(1-ti);
}
else{
PositionY[a]=2*ymin-PositionY[a];
VelocityY[a] = -VelocityY[a];
}
if(wallcollisions==1)setcollision(PositionX[a],ymin,PositionZ[a]-eps,PositionX[a],ymin-2*ballsize,PositionZ[a]-eps, Math.abs(VelocityY[a]), wallcollisionimg,10,2);
}
if (PositionY[a]>= ymax){
if(Gravity>0.0000001){
ti=(-orVelocityY+Math.sqrt(orVelocityY*orVelocityY+2*Gravity*(ymax-orPositionY)))/Gravity;
vi=orVelocityY+Gravity*ti;
PositionY[a]=ymax-vi*(1-ti)+0.5*Gravity*(1-ti)*(1-ti);
VelocityY[a]=-vi+Gravity*(1-ti);
}
else{
PositionY[a]=2*ymax-PositionY[a];
VelocityY[a] = -VelocityY[a];
}
//if(wallcollisions==1)setcollision(PositionX[a],ymax,PositionZ[a]-eps,PositionX[a],ymax+2*ballsize,PositionZ[a]-eps, Math.abs(VelocityY[a]), wallcollisionimg,40,5);
}
}
}

function resize(){
container.style.left=0;
container.style.top=0;
}