Ciao, spero possiate aiutarmi.

Perchè in questo CSS, dove ho previsto dei sottomenu il colore di sfondo rimane bianco, ?

codice:
<head>

<script type="text/javascript">

var menuids=["suckertree1"] //Enter id(s) of SuckerTree UL menus, separated by commas

function buildsubmenus(){
for (var i=0; i<menuids.length; i++){
  var ultags=document.getElementById(menuids[i]).getElementsByTagName("ul")
    for (var t=0; t<ultags.length; t++){
    ultags[t].parentNode.getElementsByTagName("a")[0].className="subfolderstyle"
		if (ultags[t].parentNode.parentNode.id==menuids[i]) //if this is a first level submenu
			ultags[t].style.left=ultags[t].parentNode.offsetWidth+"px" //dynamically position first level submenus to be width of main menu item
		else //else if this is a sub level submenu (ul)
		  ultags[t].style.left=ultags[t-1].getElementsByTagName("a")[0].offsetWidth+"px" //position menu to the right of menu item that activated it
    ultags[t].parentNode.onmouseover=function(){
    this.getElementsByTagName("ul")[0].style.display="block"
    }
    ultags[t].parentNode.onmouseout=function(){
    this.getElementsByTagName("ul")[0].style.display="none"
    }
    }
		for (var t=ultags.length-1; t>-1; t--){ //loop through all sub menus again, and use "display:none" to hide menus (to prevent possible page scrollbars
		ultags[t].style.visibility="visible"
		ultags[t].style.display="none"
		}
  }
}

if (window.addEventListener)
window.addEventListener("load", buildsubmenus, false)
else if (window.attachEvent)
window.attachEvent("onload", buildsubmenus)

/--></script>

<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<style type="text/css">

.suckerdiv ul{
margin: 0;
padding: 0;
list-style-type: none;
width: 160px; /* Width of Menu Items */
border-bottom: 1px solid #ccc;
}
	
.suckerdiv ul li{
position: relative;
}
	
/*Sub level menu items */
.suckerdiv ul li ul{
position: absolute;
width: 170px; /*sub menu width*/
top: 0;
visibility: hidden;
}

/* Sub level menu links style */
.suckerdiv ul li a{
display: block;
overflow: auto; /*force hasLayout in IE7 */
color: black;
text-decoration: none;
background: white url(glossyback.gif) repeat-x bottom left;
padding: 1px 5px;
border: 1px solid #ccc;
border-bottom: 0;
font: bold 13px "Lucida Grande", "Trebuchet MS", Verdana, Helvetica, sans-serif;
}

.suckerdiv ul li a:visited{
color: white;
}

.suckerdiv ul li a:hover{
background-color: #EA7317;
}

.suckerdiv .subfolderstyle{
color: black;
background: url(glossyback.gif) no-repeat center right;
}

	
/* Holly Hack for IE \*/
* html .suckerdiv ul li { float: left; height: 1%; }
* html .suckerdiv ul li a { height: 1%; }
/* End */

</style>


</head>

<body>

<div class="suckerdiv">
  

<ul id="suckertree1">[*]Item 1[*]Item 2[*]Folder 1 >>>
  <ul>[*]Sub Item 1.1[*]Sub Item 1.2[/list]
[*]Item 3
[*]Folder 2
  <ul>[*]Sub Item 2.1[*]Folder 2.1
    <ul>[*]Sub Item 2.1.1
    
      <ul>[*]Sub Item 1.1
  
    <ul>[*]Sub Item 1.1[*]Sub Item 1.2[/list]
  [*]Sub Item 1.2[/list]
  
    
    
    [*]Sub Item 2.1.2[*]Sub Item 2.1.3[*]Sub Item 2.1.4[/list]
  [/list]
[*]Item 4

 [/list]
</div>
	



</body>

</html>