problème avec un script

comment rendre ce script compagnible avec mozila firefox etc

il marche que sur internet explorer

<script language="JavaScript1.2">

//Autumn leaves- by Kurt Grigg (kurt.grigg@virgin.net)

//Pre-load your image below!

grphcs=new Array(6)

Image0=new Image();

Image0.src=grphcs[0]="http://www.espacejavascript.com/images/script/al.gif";

Image1=new Image();

Image1.src=grphcs[1]="http://www.espacejavascript.com/images/script/bl.gif"

Image2=new Image();

Image2.src=grphcs[2]="http://www.espacejavascript.com/images/script/cl.gif"

Image3=new Image();

Image3.src=grphcs[3]="http://www.espacejavascript.com/images/script/dl.gif"

Image4=new Image();

Image4.src=grphcs[4]="http://www.espacejavascript.com/images/script/el.gif"

Image5=new Image();

Image5.src=grphcs[5]="http://www.espacejavascript.com/images/script/fl.gif"

Amount=8; //Smoothness depends on image file size, the smaller the size the more you can use!

Ypos=new Array();

Xpos=new Array();

Speed=new Array();

Step=new Array();

Cstep=new Array();

ns=(document.layers)?1:0;

ns6=(document.getElementById&&!document.all)?1:0;

if (ns){

for (i = 0; i < Amount; i++){

var P=Math.floor(Math.random()*grphcs.length);

rndPic=grphcs[P];

document.write("<LAYER NAME='sn"+i+"' LEFT=0 TOP=0><img src="+rndPic+"></LAYER>");

}

}

else{

document.write('<div style="position:absolute;top:0px;left:0px"><div style="position:relative">');

for (i = 0; i < Amount; i++){

var P=Math.floor(Math.random()*grphcs.length);

rndPic=grphcs[P];

document.write('<img id="si'+i+'" src="'+rndPic+'" style="position:absolute;top:0px;left:0px">');

}

document.write('</div></div>');

}

WinHeight=(ns||ns6)?window.innerHeight:window.document.body.clientHeight;

WinWidth=(ns||ns6)?window.innerWidth-70:window.document.body.clientWidth;

for (i=0; i < Amount; i++){

Ypos = Math.round(Math.random()*WinHeight);

Xpos = Math.round(Math.random()*WinWidth);

Speed= Math.random()*5+3;

Cstep=0;

Step=Math.random()*0.1+0.05;

}

function fall(){

var WinHeight=(ns||ns6)?window.innerHeight:window.document.body.clientHeight;

var WinWidth=(ns||ns6)?window.innerWidth-70:window.document.body.clientWidth;

var hscrll=(ns||ns6)?window.pageYOffset:document.body.scrollTop;

var wscrll=(ns||ns6)?window.pageXOffset:document.body.scrollLeft;

for (i=0; i < Amount; i++){

sy = Speed*Math.sin(90*Math.PI/180);

sx = Speed*Math.cos(Cstep);

Ypos+=sy;

Xpos+=sx;

if (Ypos > WinHeight){

Ypos=-60;

Xpos=Math.round(Math.random()*WinWidth);

Speed=Math.random()*5+3;

}

if (ns){

document.layers['sn'+i].left=Xpos;

document.layers['sn'+i].top=Ypos+hscrll;

}

else if (ns6){

document.getElementById("si"+i).style.left=Math.min(WinWidth,Xpos);

document.getElementById("si"+i).style.top=Ypos+hscrll;

}

else{

eval("document.all.si"+i).style.left=Xpos;

eval("document.all.si"+i).style.top=Ypos+hscrll;

}

Cstep+=Step;

}

setTimeout('fall()',20);

}

window.onload=fall

//-->

</script>

<p><font face="verdana" size="1">Powered and Generated by </font><a href="http://www.espacejavascript.com" target="_blank"><font face="verdana,arial,helvetica" size="1" color="black">http://www.<b>espacejavascript</b>.com</font></a></p>

merci par avance

Slt,

Testé avec Firefox 3.5.3 ok, pas de soucis :blush:

Merci :blush: