Bonjour,
Merci pour vos réactions, premièrement je n'ai pas l'intention de faire un menu en javascript, mais merci Marie pour ton imagination fertile.....
Pour le navigateur c'est IE8, je vais travailler ta suggestion Felipe, mais tu m'as compris:)
Voici ci-joint le code css, si vous y voyez l'erreur par rapport à mon problème:
.bg {background: url(images/button4.gif);}
.menu {padding:0; margin:0; height:31px; background:#fff; position:relative; font-family:arial, verdana, sans-serif; list-style-type:none; text-align:center;
}
.menu li.top { float:left; width:131px; text-align:center;
}
.menu li a.top_link {
float:left; height:31px; width:131px; line-height:26px; color:#fff; text-decoration:none; font-size:12px; font-weight:bold; padding:0 0 0 10px; cursor:pointer; background: url(images/Bottom1R.png) no-repeat; text-align:center;
}
.menu li a.top_link span {float:left; font-weight:bold; padding:0 20px 0 10px; height:31px;}
.menu li a.top_link span.down {float:left; height:31px;}
.menu li a.top_link:hover {color:#06D2D8; background: url(images/Bottom2R.png) no-repeat; width:131px; float:left; height:31px; padding:0 0 0 10px; font-size:12px; font-weight:bold; line-height:26px; text-align:center;
}
.menu li a.top_link:hover span {display: block;}
.menu li a.top_link:hover span.down {display: block;}
.menu li:hover > a.top_link {display: block;}
.menu li:hover > a.top_link span { display: block;}
.menu li:hover > a.top_link span.down {display: block;}
.menu table {border-collapse:collapse; width:0; height:0; position:absolute; top:0; left:0;}
.menu a:hover {visibility:visible;}
.menu li:hover {position:relative; z-index:200;}
.menu ul,
.menu :hover ul ul,
.menu :hover ul :hover ul ul,
.menu :hover ul :hover ul :hover ul ul,
.menu :hover ul :hover ul :hover ul :hover ul ul {position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}
.menu :hover ul.sub {left:2px; top:40px; right:2px; background: #fff; padding:3px 0; border:1px solid #999999; white-space:nowrap; width:200px; height:auto; }
.menu :hover ul.sub li {display:block; height:31px; position:relative; float:left; width:250px;}
.menu :hover ul.sub li a {font-weight:normal;display:block; font-size:11px; height:31px; width:131px; line-height:20px; text-indent:5px; color:#000; text-decoration:none; border:3px solid #fff; border-width:0 0 0 3px;background: url(images/Sub1R.png) no-repeat;}
.menu :hover ul.sub li a.fly {background:#fff;}
.menu :hover ul.sub li a:hover {background:#999999; color:#fff;}
.menu :hover ul.sub li a.fly:hover {background:#999999 url(images/arrow_over.gif) 80px 7px no-repeat; color:#fff;}
.menu :hover ul li:hover > a.fly {background:#999999 url(images/arrow_over.gif) 80px 7px no-repeat; color:#fff;}
.menu :hover ul :hover ul,
.menu :hover ul :hover ul :hover ul,
.menu :hover ul :hover ul :hover ul :hover ul,
.menu :hover ul :hover ul :hover ul :hover ul :hover ul
{left:90px; top:-4px; background: #fff; padding:3px 0; border:1px solid 999999; white-space:nowrap; width:93px; z-index:200; height:auto;}