Drop down menu not displaying correctly in IE!

[SlickAU]

Hey dudes,

 

I am in the final stages of finishing this drop down menu I have made using mainly div tags, javascript and css...

 

It looks absolutely perfect in Firefox, but when you open it up in IE, the dropdown function does not work properly and the css doesn't kick in properly.  ???

 

The Live address is:

 

http://www.theslick.com/portfolio/v2

 

Here is the code for the page:

 

<div id='topnav'>

<div id="navcontainer">
<div id="navbox" onmouseover="dropdown('1')" onmouseout="drophide()">Application

<div id="navdrop" onmouseover="dropdown('1')" onmouseout="drophide()">
<a href="database/" class="menuitem">Database</a>
</div>
<div id="navdrop1" onmouseover="dropdown('1')" onmouseout="drophide()">
<a href="#" class="menuitem">Frame Editor</a>
</div>
</div>
<div id="navbox" onmouseover="dropdown('2')" onmouseout="drophide()">Websites
<div id="navdrop2" onmouseover="dropdown('yes')" onmouseout="drophide()">
<a href="?p=websites" class="menuitem">View</a>
</div>
</div>
<div id="navbox"><a href="?p=media" class="menuitem">Media</a>
</div>
<div id="navbox"><a href="?p=contact" class="menuitem">Contact</a></div>
</div>
</div>

 

and here is the CSS:

 

#topnav {

margin:0;
padding:0;
height:20px;
width:100%;
background-color:#87c8fb;
z-index:1;

}

#navcontainer {

margin-left:220px;
float:left;
z-index:1;
position:relative;
height:20px;

}

#navbox {

width:120px;
height:17px;
font-family:Verdana, Arial, Helvetica, sans-serif;
font-size:12px;
font-weight:bold;
text-align:center;
color:#FFFFFF;
padding-top:2px;
float:left;
text-decoration:none;


}

#navbox:hover {

background-color:#666666;
border-bottom:1px solid #333333;
border-top:1px solid #333333;
color:#FFFFFF;

}

#navdrop {

height:18px;
width:120px;
color:white;
background-color:#87c8fb;
padding-top:5px;
margin-top:4px;
visibility:hidden;

}

#navdrop:hover {

color:#FFFFFF;
background-color:#666666;

}

#navdrop1 {

height:18px;
width:120px;
color:white;
background-color:#87c8fb;
padding-top:5px;
border-bottom:1px solid #333333;
visibility:hidden;

}

#navdrop1:hover {

color:#FFFFFF;
background-color:#666666;

}

#navdrop2 {

height:18px;
width:120px;
color:white;
background-color:#87c8fb;
padding-top:5px;
margin-top:4px;
visibility:hidden;
border-bottom:1px solid #333333;

}

#navdrop2:hover {

color:#FFFFFF;
background-color:#666666;

}

 

and finally the JS (its pretty simple...):

 

<script language="javascript" type="text/javascript">

function dropdown(number) {

if (number == "1") {

document.getElementById("navdrop").style.visibility = "visible"
document.getElementById("navdrop1").style.visibility = "visible"

}

else if (number =="2") {


document.getElementById("navdrop2").style.visibility = "visible";

}

}

function drophide() {

document.getElementById("navdrop").style.visibility = "hidden"
document.getElementById("navdrop1").style.visibility = "hidden"
document.getElementById("navdrop2").style.visibility = "hidden"

}



</script>

 

Any help would be much appreciated....

 

Thanks 

[Zer0Cam]

I am having the same problem aswell