EFFET DE SURBRILLANCE EN JAVASCRIPT

function getReferenceToDiv(divId,oDoc)
{
	if(document.getElementById)
		{return document.getElementById(divId);}
	if(document.all)
		{return document.all[divId];}
	if(!oDoc)
		{oDoc = document;}
	if(document.layers)
		{
		if(oDoc.layers[divId])
			{return oDoc.layers[divId];}
		else{
			for( var x = 0, y; !y && x < oDoc.layers.length; x++)
				{
					y = getReferenceToDiv(divId,oDov.layers[x].document);
					return y;
				}
			}
		}
	return false;
}

function bgColor(myReference,Hexcolor){
if( myReference.style ) { myReference = myReference.style; }
Hexcolor = "#"+Hexcolor;
  myReference.background = Hexcolor;
  myReference.backgroundColor = Hexcolor;
  myReference.bgColor = Hexcolor;
}

function cutHex(h){return (h.charAt(0)=="#") ? h.substring(1,7) : h;}
function RtoH(n){if(n==null){return "00";}
	var hexa="0123456789ABCDEF";
	if(n==null){return "00";}
	n=parseInt(n);if(n==0 || n==null){return "00";}
	n=Math.max(0,n); n=Math.min(n,255);n=Math.round(n);
	return hexa.charAt(Math.floor(n/16)) + hexa.charAt(n%16);}
	
function degradee(ref,Hex1,Hex2,Percent){
var rgb1=new Array();
rgb1[0] = parseInt((cutHex(Hex1)).substring(0,2),16);
rgb1[1] = parseInt((cutHex(Hex1)).substring(2,4),16);
rgb1[2] = parseInt((cutHex(Hex1)).substring(4,6),16);

var rgb2=new Array();
rgb2[0] = parseInt((cutHex(Hex2)).substring(0,2),16);
rgb2[1] = parseInt((cutHex(Hex2)).substring(2,4),16);
rgb2[2] = parseInt((cutHex(Hex2)).substring(4,6),16);
var dr = rgb1[0]-(Percent*(rgb1[0] - rgb2[0])) / 100;
var dg = rgb1[1]-(Percent*(rgb1[1] - rgb2[1])) / 100;
var db = rgb1[2]-(Percent*(rgb1[2] - rgb2[2])) / 100;

var color = RtoH(dr)+RtoH(dg)+RtoH(db);
bgColor(ref,color);

}


function surbrillance(id,millisec,HexInit,HexFinal){
	var obj = getReferenceToDiv(id);
	var timer=0;
	var speed = Math.round(millisec / 100);
	var o = 0;
	for(var a=0;a<100;a++){
		setTimeout(function(){degradee(obj,HexInit,HexFinal,o);o++;},(timer*speed));timer++;
	}
}