// fonction masquage/affichage
function showHide(cible, dest, direction){
	
	position = document.getElementById(cible).offsetHeight;
	//alert(position);
	vit=dest-position;
	position+=vit/5;
	
	document.getElementById(cible).style.height = position+'px';
	
	if(direction == 'down') {
		if(position < dest-5) 
			timeOut = setTimeout('showHide("'+cible+'", '+dest+', "'+direction+'")',30);
		else
			clearTimeout(timeOut);
	}else if(direction == 'up') {
		if(position > dest+5) 
			timeOut = setTimeout('showHide("'+cible+'", '+dest+', "'+direction+'")',30);
		else
			clearTimeout(timeOut);
	}
	/*
	if(direction == 'down') {
		if(position < dest-5) showHide(cible, dest, direction);
	}else if(direction == 'up') {
		if(position > dest+5) showHide(cible, dest, direction);
	}*/
	
}