function afficherVideo(key) {
	$.fn.colorbox({href:"./visionneuse/video.php?key="+key, 
		width:"620px",
		height:"550px", 
		iframe:true, 
		transition:'none',
		opacity:0,
		title: "<div class='logo_"+key+"' ></div>",
		close:'',  
		onComplete:function(){}
	});
}