function clignote( id, delay )
{
	//Objet en cours
	obj = document.getElementById( id );
	
	//Definir l'opacite et le delai pour la premiere fois
	obj.opacite    = 100;
	obj.delai      = delay;
	obj.delai_ac   = delay;
	obj.ecart	   = delay/20;	
	obj.sens       = "down";
	
	
	//Lancer le clignotement
	setTimeout( function(){ je_clignote( id, obj.ecart ) }, obj.ecart );
}

function je_clignote( id , delay )
{
	//definir le changement de sens
	
	if( obj.delai_ac == obj.delai ) obj.sens = "down";
	if( obj.delai_ac <= 0		  ) obj.sens = "up";
	
	//Definir l'opacité
	if( obj.sens == "down" ) {obj.opacite -= 5;obj.delai_ac -= obj.ecart;}
	if( obj.sens == "up"   ) {obj.opacite += 5; obj.delai_ac += obj.ecart;}
	
	//Opacity
	obj.style.opacity = (obj.opacite / 100);
	obj.style.MozOpacity = (obj.opacite / 100);
	obj.style.KhtmlOpacity = (obj.opacite / 100);
	obj.style.filter = "alpha(opacity=" + obj.opacite + ")";
	
	setTimeout( function(){ je_clignote( id, obj.ecart ) }, obj.ecart );
}