$(document).ready(function(){
  $('#teaser-une').hide();
$('#bloc-hp-1 span.img-une').hover(
	function(){
		$('#teaser-une').slideDown('slow');
	},
	function(){
		$('#teaser-une').slideUp('slow');
	}
	);
})

$(document).ready(function(){
  $('#teaser-une').hide();
$('#bloc-hp-2 span.img-une').hover(
	function(){
		$('#teaser-une').slideDown('slow');
	},
	function(){
		$('#teaser-une').slideUp('slow');
	}
	);
})