[Wordpress] Problem with the stylish of the submenu! HELP please!

[George Silence Panayi]

Hello every one! i having a problem using the ddsmoothmenu javascript code on my wordpress website. the problem is that i having wrong dimensions on the sub menu here you can see in the image

here the code of the java script

//** Smooth Navigational Menu- By Dynamic Drive DHTML code library: http://www.dynamicdrive.com
//** Script Download/ instructions page: http://www.dynamicdrive.com/dynamicindex1/ddlevelsmenu/
//** Menu created: Nov 12, 2008

//** Dec 12th, 08" (v1.01): Fixed Shadow issue when multiple LIs within the same UL (level) contain sub menus: http://www.dynamicdrive.com/forums/showthread.php?t=39177&highlight=smooth

//** Feb 11th, 09" (v1.02): The currently active main menu item (LI A) now gets a CSS class of ".selected", including sub menu items.

//** May 1st, 09" (v1.3):
//** 1) Now supports vertical (side bar) menu mode- set "orientation" to 'v'
//** 2) In IE6, shadows are now always disabled

//** July 27th, 09" (v1.31): Fixed bug so shadows can be disabled if desired.


var ddsmoothmenu={

//Specify full URL to down and right arrow images (23 is padding-right added to top level LIs with drop downs):
arrowimages: {down:['downarrowclass', 'down.gif', 0], right:['rightarrowclass', 'right.gif',0]},

transition: {overtime:200, outtime:200}, //duration of slide in/ out animation, in milliseconds
shadow: {enable:false, offsetx:5, offsety:5},

///////Stop configuring beyond here///////////////////////////

detectwebkit: navigator.userAgent.toLowerCase().indexOf("applewebkit")!=-1, //detect WebKit browsers (Safari, Chrome etc)
detectie6: document.all && !window.XMLHttpRequest,

getajaxmenu:function($, setting){ //function to fetch external page containing the panel DIVs
	var $menucontainer=$('#'+setting.contentsource[0]) //reference empty div on page that will hold menu
	$menucontainer.html("Loading Menu...")
	$.ajax({
		url: setting.contentsource[1], //path to external menu file
		async: true,
		error:function(ajaxrequest){
			$menucontainer.html('Error fetching content. Server Response: '+ajaxrequest.responseText)
		},
		success:function(content){
			$menucontainer.html(content)
			ddsmoothmenu.buildmenu($, setting)
		}
	})
},


buildmenu:function($, setting){
	var smoothmenu=ddsmoothmenu
	var $mainmenu=$("#"+setting.mainmenuid+">ul") //reference main menu UL
	$mainmenu.parent().get(0).className=setting.classname || "ddsmoothmenu"
	var $headers=$mainmenu.find("ul").parent()
	$headers.hover(
		function(e){
			$(this).children('a:eq(0)').addClass('selected')
		},
		function(e){
			$(this).children('a:eq(0)').removeClass('selected')
		}
	)
	$headers.each(function(i){ //loop through each LI header
		var $curobj=$(this).css({zIndex: 100-i}) //reference current LI header
		var $subul=$(this).find('ul:eq(0)').css({display:'block'})
		this._dimensions={w:this.offsetWidth, h:this.offsetHeight, subulw:$subul.outerWidth(), subulh:$subul.outerHeight()}
		this.istopheader=$curobj.parents("ul").length==1? true : false //is top level header?
		$subul.css({top:this.istopheader && setting.orientation!='v'? this._dimensions.h+"px" : 0})
		/*$curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
			'<img src="'+ (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
			+'" class="' + (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
			+ '" style="border:0;" />'
		)*/
		if (smoothmenu.shadow.enable){
			this._shadowoffset={x:(this.istopheader?$subul.offset().left+smoothmenu.shadow.offsetx : this._dimensions.w), y:(this.istopheader? $subul.offset().top+smoothmenu.shadow.offsety : $curobj.position().top)} //store this shadow's offsets
			if (this.istopheader)
				$parentshadow=$(document.body)
			else{
				var $parentLi=$curobj.parents("li:eq(0)")
				$parentshadow=$parentLi.get(0).$shadow
			}
			this.$shadow=$('<div class="ddshadow'+(this.istopheader? ' toplevelshadow' : '')+'"></div>').prependTo($parentshadow).css({left:this._shadowoffset.x+'px', top:this._shadowoffset.y+'px'})  //insert shadow DIV and set it to parent node for the next shadow div
		}
		$curobj.hover(
			function(e){
				var $targetul=$(this).children("ul:eq(0)")
				this._offsets={left:$(this).offset().left, top:$(this).offset().top}
				var menuleft=this.istopheader && setting.orientation!='v'? 0 : this._dimensions.w
				menuleft=(this._offsets.left+menuleft+this._dimensions.subulw>$(window).width())? (this.istopheader && setting.orientation!='v'? -this._dimensions.subulw+this._dimensions.w : -this._dimensions.w) : menuleft //calculate this sub menu's offsets from its parent
				if ($targetul.queue().length<=1){ //if 1 or less queued animations
					$targetul.css({left:menuleft+"px", width:this._dimensions.subulw+'px'}).animate({height:'show',opacity:'show'}, ddsmoothmenu.transition.overtime)
					if (smoothmenu.shadow.enable){
						var shadowleft=this.istopheader? $targetul.offset().left+ddsmoothmenu.shadow.offsetx : menuleft
						var shadowtop=this.istopheader?$targetul.offset().top+smoothmenu.shadow.offsety : this._shadowoffset.y
						if (!this.istopheader && ddsmoothmenu.detectwebkit){ //in WebKit browsers, restore shadow's opacity to full
							this.$shadow.css({opacity:1})
						}
						this.$shadow.css({overflow:'', width:this._dimensions.subulw+'px', left:shadowleft+'px', top:shadowtop+'px'}).animate({height:this._dimensions.subulh+'px'}, ddsmoothmenu.transition.overtime)
					}
				}
			},
			function(e){
				var $targetul=$(this).children("ul:eq(0)")
				$targetul.animate({height:'hide', opacity:'hide'}, ddsmoothmenu.transition.outtime)
				if (smoothmenu.shadow.enable){
					if (ddsmoothmenu.detectwebkit){ //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
						this.$shadow.children('div:eq(0)').css({opacity:0})
					}
					this.$shadow.css({overflow:'hidden'}).animate({height:0}, ddsmoothmenu.transition.outtime)
				}
			}
		) //end hover
	}) //end $headers.each()
	$mainmenu.find("ul").css({display:'none', visibility:'visible'})
},

init:function(setting){
	if (typeof setting.customtheme=="object" && setting.customtheme.length==2){ //override default menu colors (default/hover) with custom set?
		var mainmenuid='#'+setting.mainmenuid
		var mainselector=(setting.orientation=="v")? mainmenuid : mainmenuid+', '+mainmenuid
		document.write('<style type="text/css">\n'
			+mainselector+' ul li a {background:'+setting.customtheme[0]+';}\n'
			+mainmenuid+' ul li a:hover {background:'+setting.customtheme[1]+';}\n'
		+'</style>')
	}
	this.shadow.enable=(document.all && !window.XMLHttpRequest)? false : this.shadow.enable //in IE6, always disable shadow
	jQuery(document).ready(function($){ //ajax menu?
		if (typeof setting.contentsource=="object"){ //if external ajax menu
			ddsmoothmenu.getajaxmenu($, setting)
		}
		else{ //else if markup menu
			ddsmoothmenu.buildmenu($, setting)
		}
	})
}

} //end ddsmoothmenu variable

//Initialize Menu instance(s):

and here is the code of my css

#mainMenu {
 position: absolute; 
 bottom: -80px; 
 left: 0px; 
 background: url(images/menu.png) no-repeat; 
 width: 961px; 
 height: 98px; 
 z-index: 10; 
 }

#mainMenu ul li{
	float:right;
}

#mainMenu ul li a {
	font-weight:bold;
	display:block;
	color:#ffffff;
	padding:25px 25px 0;
	font-size:15px;
}

#mainMenu ul li a span {
	font-size:10px;	
	color:#999;
	line-height:120%;

}

#mainMenu ul li a:hover {
	text-decoration:none;
	color:#2fc8ff;
}


#mainMenu.ddsmoothmenu ul{
z-index:100;
margin: 0;
padding: 0;
list-style-type: none;
}

/*Top level list items*/
#mainMenu.ddsmoothmenu ul li{
position: relative;
float: left;
}

/*Top level menu link items style*/

* html #mainMenu.ddsmoothmenu ul li a{ /*IE6 hack to get sub menu links to behave correctly*/
display: inline-block;
}


/*1st sub level menu*/
#mainMenu.ddsmoothmenu ul li ul{
position: absolute;
left: 0;
display: none; /*collapse all sub menus to begin with*/
visibility: hidden;
padding-bottom:10px;
padding-right:10px;
background: url(images/secondarydropdown.png) repeat-y; box-shadow: 3px 6px 7px 1px rgba(0, 0, 0, 0.5); -moz-box-shadow:3px 6px 7px 1px rgba(0, 0, 0, 0.5); -webkit-box-shadow: 3px 6px 7px 1px rgba(0, 0, 0, 0.5); border-radius: 8px; -moz-border-radius: 8px; -webkit-border-radius: 8px; border-top-left-radius: 0px; -moz-border-radius-topleft: 0px; -webkit-border-top-left-radius: 0px; border-top-right-radius: 0px; -moz-border-radius-topright: 0px; -webkit-border-top-right-radius: 0px; border: 1px solid #232323; border-top: none;
/*border-bottom:1px solid #222;*/
}

/*Sub level menu list items (undo style from Top level List Items)*/
#mainMenu.ddsmoothmenu ul li ul li{
float: none;
display: list-item;
padding:0;
}


/* Sub level menu links style */
#mainMenu.ddsmoothmenu ul li ul li a, #mainMenu.ddsmoothmenu ul li ul li a:hover{
text-align:left;
margin:-5px;
/*background:#000;*/
line-height:100%;
height:10%;
font-size:13px;
display: block; padding: 22px 5px 15px 28px; color: #ffffff; font-family: Century Gothic, Arial, sans-serif; text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.3); background: url(images/secondary-dropdown-bullet.png) no-repeat 15px 27px;

}

#mainMenu.ddsmoothmenu ul li ul li a:hover {
	color:#1FA2E1;	
}

#mainMenu.ddsmoothmenu ul li ul li a.last, #mainMenu.ddsmoothmenu ul li ul li a.last:hover {
	border:none;
}

/* Holly Hack for IE \*/
* html #mainMenu.ddsmoothmenu{height: 1%;} /*Holly Hack for IE7 and below*/

also how i can make the submenu always be in front of the slider? i'm using nivo slider

thanks!!