
<!-- d'après le script : Random Movement Script by kurt.grigg@virgin.net
P=new Image();
P.src="caille2.gif";
SY=3;            
SX=5;           
ns=(document.layers)?1:0;
if (ns){
document.write("<LAYER NAME='netscape' LEFT=0 TOP=0><img src="+P.src+"></LAYER>");
}
else{
document.write("<div style='position:absolute;top:0px;left:0px'><div style='position:relative'>");
document.write("<img id='explorer' src='"+P.src+"' style='position:absolute;top:0px;left:0px'>");
document.write("</div></div>")
}
R=0,PB=0,RD=0,Y=0,X=0,D=0,VB=0,HB=0;
Y=10;X=10;D=Math.floor(Math.random()*60+10);
function Curve(){
plusMinus=new Array(1,-1,2,-2,3,-3,0,1,-1,4,-4)
R=Math.floor(Math.random()*plusMinus.length);
RD=plusMinus[R];
setTimeout('Curve()',1800);
}
function MoveRandom(){
var H=(document.layers)?window.innerHeight:document.body.clientHeight;
var W=(document.layers)?window.innerWidth:document.body.clientWidth;
var YS=(document.layers)?window.pageYOffset:document.body.scrollTop;
var XS=(document.layers)?window.pageXOffset:document.body.scrollLeft;
var BY=-P.height;
var BX=-P.width;
PB=D+=RD;
y = SY*Math.sin(PB*Math.PI/180);
x = SX*Math.cos(PB*Math.PI/180);
if (D < 0) D+=360;
Y+=y;
X+=x;
VB=180-D;
HB=0-D;
//Corner rebounds! not necessary but looks nice.
if ((Y < 1) && (X < 1)) {Y=1;X=1;D=45;}
if ((Y < 1) && (X > W+BX)) {Y=1;X=W+BX;D=135;}
if ((Y > H+BY) && (X < 1)) {Y=H+BY;X=1;D=315;}
if ((Y > H+BY) && (X > W+BX)) {Y=H+BY;X=W+BX;D=225;}
//Edge rebounds!
if (Y < 1) {Y=1;D=HB;}  
if (Y > H+BY) {Y=H+BY;D=HB;}  
if (X < 1) {X=1;D=VB;} 
if (X > W+BX) {X=W+BX;D=VB;} 
var layer=(document.layers)?document.netscape:explorer.style;
layer.top=Y+YS;
layer.left=X+XS;
setTimeout('MoveRandom()',10);
}
function sTaRt(){Curve();MoveRandom()}
if (document.all||document.layers){window.onload=sTaRt}
//-->