Bonjour

j'ai trouvé ce code mais il n'est pas valide W3C à cause des &&. Il existe un moyen de les remplacer ?
Sinon si vous avez un script de ce genre dans votre besasse ;-)... :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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<!-- START TSSNOW -->
<script type="text/javascript">
  var snowmax=60;
  var snowcolor=new Array("#aaaacc","#ddddff","#ccccdd","#f3f3f3","#f0ffff");
  var snowtype=new Array("Verdana","Arial Narrow","Times","Comic Sans MS");
  var snowletter="*";
  var sinkspeed=0.6;
  var snowmaxsize=22;
  var snowminsize=8;
  var snowingzone=1;
  var snow=new Array();
  var marginbottom;
  var marginright;
  var timer;
  var i_snow=0;
  var x_mv=new Array();var crds=new Array();var lftrght=new Array();
  var browserinfos=navigator.userAgent;
  var ie5=document.all&&document.getElementById&&!browserinfos.match(/Opera/);
  var ns6=document.getElementById&&!document.all;var opera=browserinfos.match(/Opera/);
  var browserok=ie5||ns6||opera;
 
  function randommaker(range) {
	  rand=Math.floor(range*Math.random());
	  return rand;
  }
 
  function initsnow() {
	  	if (ie5 || opera) {
		  marginbottom = document.body.clientHeight;
		  marginright = document.body.clientWidth;
		}else if (ns6) {
		  marginbottom = document.body.clientHeight;
		  marginright = window.innerWidth;
	 	}
 
		var snowsizerange=snowmaxsize-snowminsize;
 
		for (i=0;i<=snowmax;i++) {
	crds[i] = 0;
	lftrght[i] = Math.random()*35;
	x_mv[i] = 0.13 + Math.random()/10;
	snow[i]=document.getElementById("s"+i);
	snow[i].style.fontFamily=snowtype[randommaker(snowtype.length)];
	snow[i].size=randommaker(snowsizerange)+snowminsize;
	snow[i].style.fontSize=snow[i].size+"px";
	snow[i].style.color=snowcolor[randommaker(snowcolor.length)];
	snow[i].sink=sinkspeed*snow[i].size/5;
 
	if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}
 
	if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}
 
	if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}
 
	if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2;}
 
	snow[i].posy=randommaker(2*marginbottom-marginbottom-2*snow[i].size);
	snow[i].style.left=snow[i].posx +"px";
	snow[i].style.top=snow[i].posy +"px";
	}
 
		movesnow();
	}
 
  function movesnow() {
	for (i=0;i<=snowmax;i++) {
		crds[i] += x_mv[i];	
		snow[i].posy+=snow[i].sink;
		snow[i].style.left=snow[i].posx+lftrght[i]*Math.sin(crds[i]) +"px";
		snow[i].style.top=snow[i].posy +"px";
 
		if (snow[i].posy>=marginbottom-2*snow[i].size || parseInt(snow[i].style.left)>(marginright-3*lftrght[i])){
			if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}
 
			if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}
 
			if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}
 
			if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}
 
			snow[i].posy=0;
		}	
	}
 
	var timer=setTimeout("movesnow()",50);
}
 
for (i=0;i<=snowmax;i++) {	document.write("<span id='s"+i+"' style='position:absolute;top:-"+snowmaxsize+"'>"+snowletter+"</span>");}
 
if (browserok) {window.onload=initsnow;}
 
</script>
<!-- END TSSNOW -->