<script type="text/javascript">
// <![CDATA[
var colours=new Array("#93f", "#3f9", "#f39", "#39f", "#9f3"); // what colour are the blobs
var speed=50; // speed of animation, lower is faster
var blobs=30; // how many blobs are in the jar
var size=80; // maximum blob size
/***************************\
* Blobs in a Jar Effect *
*(c)2012-20 mf2fm web-design*
* http://www.mf2fm.com/rv *
* DON'T EDIT BELOW THIS BOX *
\***************************/
var div;
var xpos=new Array();
var ypos=new Array();
var zpos=new Array();
var dx=new Array();
var dy=new Array();
var dz=new Array();
var blob=new Array();
var swide=800;
var sleft=0;
var shigh=600;
var sdown=0;
var x=400;
var y=300;
function addLoadEvent(funky) {
var oldonload=window.onload;
if (typeof(oldonload)!='function') window.onload=funky;
else window.onload=function() {
if (oldonload) oldonload();
funky();
}
}
addLoadEvent(fill_the_jar);
function fill_the_jar() {
var i, dvs;
div=document.createElement('div');
dvs=div.style;
dvs.position='fixed';
dvs.left='0px';
dvs.top='0px';
dvs.width='1px';
dvs.height='1px';
document.body.appendChild(div);
set_scroll();
set_width();
for (i=0; i<blobs; i++) {
add_blob(i);
jamjar(i);
}
}
function add_blob(ref) {
var dv, sy;
dv=document.createElement('div');
sy=dv.style;
sy.width=size/2+"px";
sy.height=size/2+"px";
sy.borderRadius="50%";
sy.position='absolute';
sy.backgroundColor=colours[ref%colours.length];
do {
ypos[ref]=Math.floor(shigh*Math.random());
xpos[ref]=Math.floor(swide*Math.random());
}
while (checkity(ref));
zpos[ref]=Math.random()*size/4;
dy[ref]=(0.5+Math.random())*(Math.random()>.5?2:-2);
dx[ref]=(0.5+Math.random())*(Math.random()>.5?2:-2);
dz[ref]=(0.5+Math.random())*(Math.random()>.5?.2:-.2);
blob[ref]=dv;
div.appendChild(blob[ref]);
set_blob(ref);
}
function checkity(j) {
var i, r=false;
if (j) for (var i=0; i<j; i++) {
if (Math.abs(xpos[i]-xpos[j])<size && Math.abs(ypos[i]-ypos[j])<size) r=true;
}
return (r);
}
function rejig(ref, xy) {
if (xy=='y') {
dx[ref]=(0.5+Math.random())*sign(dx[ref]);
dy[ref]=(0.5+Math.random())*-sign(dy[ref]);
}
else {
dx[ref]=(0.5+Math.random())*-sign(dx[ref]);
dy[ref]=(0.5+Math.random())*sign(dy[ref]);
}
}
function sign(a) {
if (a<0) return (-2);
else if (a>0) return (2);
else return (0);
}
function set_blob(ref) {
var sy;
sy=blob[ref].style;
sy.top=ypos[ref]-size/4+'px';
sy.left=xpos[ref]-size/4+'px';
sy.filter='blur('+zpos[ref]+'px)';
}
function jamjar(ref) {
var i;
if (ypos[ref]+dy[ref]<-size/2 || ypos[ref]+dy[ref]>shigh+size/2) rejig(ref, 'y');
else if (xpos[ref]+dx[ref]<-size/2 || xpos[ref]+dx[ref]>swide+size/2) rejig(ref, 'x');
else if (Math.abs(ypos[ref]+dy[ref]-y)<size/2 && Math.abs(xpos[ref]+dx[ref]-x)<size/2 && zpos[ref]<size/20) {
if (Math.abs(ypos[ref]+dy[ref]-y)>Math.abs(xpos[ref]+dx[ref]-x)) dy[ref]=-dy[ref];
else dx[ref]=-dx[ref];
}
else for (i=0; i<blobs; i++) {
if (i==ref) continue;
if (Math.abs(ypos[ref]+dy[ref]-ypos[i])<size/2 && Math.abs(xpos[ref]+dx[ref]-xpos[i])<size/2 && Math.abs(zpos[ref]-zpos[i])<size/20) {
if (Math.abs(ypos[ref]+dy[ref]-ypos[i])>Math.abs(xpos[ref]+dx[ref]-xpos[i])) dy[ref]=-dy[ref];
else dx[ref]=-dx[ref];
}
}
ypos[ref]+=dy[ref];
xpos[ref]+=dx[ref];
if (zpos[ref]+dz[ref]<0) dz[ref]=Math.abs(dz[ref]);
else if (zpos[ref]+dz[ref]>size/4) dz[ref]=-Math.abs(dz[ref]);
zpos[ref]+=dz[ref];
set_blob(ref);
setTimeout("jamjar("+ref+")", speed);
}
document.onmousemove=mouse;
function mouse(e) {
if (e) {
y=e.pageY;
x=e.pageX;
}
else {
set_scroll();
y=event.y+sdown;
x=event.x+sleft;
}
}
document.onscroll=set_scroll;
function set_scroll() {
if (typeof(self.pageYOffset)=="number") {
sdown=self.pageYOffset;
sleft=self.pageXOffset;
}
else if (document.body.scrollTop || document.body.scrollLeft) {
sdown=document.body.scrollTop;
sleft=document.body.scrollLeft;
}
else if (document.documentElement && (document.documentElement.scrollTop || document.documentElement.scrollLeft)) {
sleft=document.documentElement.scrollLeft;
sdown=document.documentElement.scrollTop;
}
else {
sdown=0;
sleft=0;
}
}
window.onresize=set_width;
function set_width() {
var sw_min=999999;
var sh_min=999999;
if (document.documentElement && document.documentElement.clientWidth) {
if (document.documentElement.clientWidth>0) sw_min=document.documentElement.clientWidth;
if (document.documentElement.clientHeight>0) sh_min=document.documentElement.clientHeight;
}
if (typeof(self.innerWidth)!="undefined" && self.innerWidth) {
if (self.innerWidth>0 && self.innerWidth<sw_min) sw_min=self.innerWidth;
if (self.innerHeight>0 && self.innerHeight<sh_min) sh_min=self.innerHeight;
}
if (document.body.clientWidth) {
if (document.body.clientWidth>0 && document.body.clientWidth<sw_min) sw_min=document.body.clientWidth;
if (document.body.clientHeight>0 && document.body.clientHeight<sh_min) sh_min=document.body.clientHeight;
}
if (sw_min==999999 || sh_min==999999) {
sw_min=800;
sh_min=600;
}
swide=sw_min;
shigh=sh_min;
}
// ]]>
</script>
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