Hi there,

I have this drop down menu that uses HMTL and CSS3 to dropdown and show the navigation. I have a slight issue though. On IE the dropdown works like its supposed to, but on Mozzila and the such, it doesnt work. It doesnt even work on IE8. I honestly cant see why this is happining. If anyone can figure this out, or help me out here that would be great.

HTML Code:
<ul id="menu">
<li>
<a href="index.shtml">Home</a>
</li>
						
<li>
<a href="team.shtml">Our Team & Vision</a>
<ul>
<li><a href="team.shtml">Our Team & Vision</a></li>
<li><a href="dr.shtml">Dr. Risty</a></li>
<li><a href="#">Worker # 1</a></li>
<li><a href="#">Worker # 2</a></li>
<li><a href="#">Worker # 3</a></li>
<li class="last"><a href="#">Worker # 4</a></li>

</ul>
</li>
						
<li>
<a href="free.shtml">Free Consultation</a>
</li>
						
<li>
<a href="newinf.shtml">New Patient Info</a>
<ul>
<li><a href="newinf.shtml">New Patient Info</a></li>
<li><a href="getstarted.shtml">Getting Started</a></li>
<li><a href="worho.shtml">Why Orthodontics?</a></li>
<li><a href="office.shtml">Our Office</a></li>
<li><a href="fininfo.shtml">Financial Information</a></li>
<li><a href="testmon.shtml">Testimonials</a></li>
<li class="last"><a href="patient.shtml">Patient Forms</a></li>
</ul>
</li>
						
<li>
<a href="ortho.shtml">Orthodontics</a>
<ul>
<li><a href="ortho.shtml">Orthodontics</a></li>
<li><a href="braces.shtml">Braces 101</a></li>
<li><a href="orthospec.shtml">Orthodontic Specialist</a></li>
<li><a href="orthoc.shtml">For Children</a></li>
<li><a href="orthoa.shtml">For Adults</a></li>
<li><a href="eiap.shtml">Early Interception and Prevention</a></li>
<li><a href="tpt.shtml">Two-Phase Treatment</a></li>
<li><a href="typebrace.shtml">Type of Braces</a></li>
<li><a href="retaininst.shtml">Retainer Instructions</a></li>
<li><a href="emercare.shtml">Emergency Care</a></li>
<li><a href="commontreat.shtml">Common Treatments</a></li>
<li class="last"><a href="invisalign.shtml">Invisalign</a></li>
</ul>
</li>
						
<li>
<a href="dentoortho.shtml">Dentofacial Orthopedics</a>
<ul>
<li><a href="dentoortho.shtml">Dentofacial Orthopedics</a></li>
<li><a href="palatal.shtml">Palatal Expander</a></li>
<li class="last"><a href="surgicalortho.shtml">Surgical Orthodontics</a></li>
</ul>
</li>
						
<li>
<a href="tmj.shtml">TMJ Disorders</a>
</li>
						
<li>
<a href="contact.shtml">Contact Us</a>
<ul>
<li><a href="contact.shtml">Contact Us</a></li>
<li class="last"><a href="officeloc.shtml">Office Location</a></li>
</ul>
</li>
</ul>
</div>

<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
<script type="text/javascript">
	$(function() {
	  if ($.browser.msie && $.browser.version.substr(0,1)<7)
	  {
		$('li').has('ul').mouseover(function(){
			$(this).children('ul').show();
			}).mouseout(function(){
			$(this).children('ul').hide();
			})
	  }
	});        
</script>
HTML Code:
#menu{
	width: 100%;
	margin: 0;
	padding: 10px 0 0 0;
	float:left;
	list-style: none;  
	background: none;
	/*background: -moz-linear-gradient(#444, #111); 
        background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #111),color-stop(1, #444));	
	background: -webkit-linear-gradient(#444, #111);	
	background: -o-linear-gradient(#444, #111);
	background: -ms-linear-gradient(#444, #111);
	background: linear-gradient(#444, #111);
	-moz-border-radius: 50px;
	border-radius: 50px;
	-moz-box-shadow: 0 2px 1px #9c9c9c;
	-webkit-box-shadow: 0 2px 1px #9c9c9c;
	box-shadow: 0 2px 1px #9c9c9c;*/
}

#menu li{
	float: left;
	padding: 0 0 10px 0;
	position: relative;
}

#menu a{
	float: left;
	height: 10px;
	padding: 0 5px;
	color: #999;
	text-transform: uppercase;
	font: 12px Tahoma, Sans-serif;
	text-decoration: none;
	text-shadow: 0 1px 0 #000;
}

#menu li:hover > a{
	color: #fafafa;
}

*html #menu li a:hover{ /* IE6 */
	color: #fafafa;
}

#menu li:hover > ul{
	display: block;
}

/* Sub-menu */

#menu ul{
    list-style: none;
    margin: 0;
    padding: 0;    
    display: none;
    position: absolute;
    top: 18px;
	width:200px;
    left: 0;
    z-index: 99999;    
    background: #444;
    background: -moz-linear-gradient(#444, #111);
    background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #111),color-stop(1, #444));
    background: -webkit-linear-gradient(#444, #111);    
    background: -o-linear-gradient(#444, #111);	
    background: -ms-linear-gradient(#444, #111);	
    background: linear-gradient(#444, #111);	
    -moz-border-radius: 5px;
    border-radius: 5px;
}

#menu ul li{
    float: none;
    margin: 0;
    padding: 0;
    display: block;  
    -moz-box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
    -webkit-box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
    box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
}

#menu ul li:last-child{   
    -moz-box-shadow: none;
    -webkit-box-shadow: none;
    box-shadow: none;    
}

#menu ul a{    
    padding: 10px;
    height: auto;
    line-height: 1;
    display: block;
    white-space: nowrap;
    float: none;
    text-transform: none;
}

*html #menu ul a{ /* IE6 */   
	height: 10px;
	width: 150px;
}

*:first-child+html #menu ul a{ /* IE7 */    
	height: 10px;
	width: 150px;
}

#menu ul a:hover{
    background: #0186ba;	
	background: -moz-linear-gradient(#04acec,  #0186ba);	
	background: -webkit-gradient(linear, left top, left bottom, from(#04acec), to(#0186ba));
	background: -webkit-linear-gradient(#04acec,  #0186ba);
	background: -o-linear-gradient(#04acec,  #0186ba);
	background: -ms-linear-gradient(#04acec,  #0186ba);
	background: linear-gradient(#04acec,  #0186ba);
}

#menu ul li:first-child a{
    -moz-border-radius: 5px 5px 0 0;
    -webkit-border-radius: 5px 5px 0 0;
    border-radius: 5px 5px 0 0;
}

#menu ul li:first-child a:after{
    content: '';
    position: absolute;
    left: 30px;
    top: -8px;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 8px solid #444;
}

#menu ul li:first-child a:hover:after{
    border-bottom-color: #04acec; 
}

#menu ul li:last-child a{
    -moz-border-radius: 0 0 5px 5px;
    -webkit-border-radius: 0 0 5px 5px;
    border-radius: 0 0 5px 5px;
}

/* Clear floated elements */
#menu:after{
	visibility: hidden;
	display: block;
	font-size: 0;
	content: " ";
	clear: both;
	height: 0;
}

* html #menu             { zoom: 1; } /* IE6 */
*:first-child+html #menu { zoom: 1; } /* IE7 */