Javacript dropdown menu (jquery) not working IE

//** 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
 
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', 'http://www.csrussells.us/ibc/js/down.gif', 23], right:['rightarrowclass', 'http://www.csrussells.us/ibc/js/right.gif']},
 
transition: {overtime:200, outtime:500}, //duration of slide in/ out animation, in milliseconds
shadow: {enabled:false, offsetx:0, offsety:0},
 
///////Stop configuring beyond here///////////////////////////
 
detectwebkit: navigator.userAgent.toLowerCase().indexOf("applewebkit")!=-1, //detect WebKit browsers (Safari, Chrome etc)
 
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)
		}
	})
},
 
buildshadow:function($, $subul){
	
},
 
buildmenu:function($, setting){
	var smoothmenu=ddsmoothmenu
	var $mainmenu=$("#"+setting.mainmenuid+">ul") //reference main menu UL
	var $headers=$mainmenu.find("ul").parent()
	$headers.each(function(i){
		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? this._dimensions.h+"px" : 0})
		$curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
			'<img src="'+ (this.istopheader? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
			+'" class="' + (this.istopheader? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
			+ '" style="border:0;" />'
		)
		if (smoothmenu.shadow.enabled){
			this._shadowoffset={x:(this.istopheader?$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? 0 : this._dimensions.w
				menuleft=(this._offsets.left+menuleft+this._dimensions.subulw>$(window).width())? (this.istopheader? -this._dimensions.subulw+this._dimensions.w : -this._dimensions.w) : menuleft //calculate this sub menu's offsets from its parent
				if ($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.enabled){
						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)")
				$targetul.animate({height:'hide', opacity:'hide'}, ddsmoothmenu.transition.outtime)
				if (smoothmenu.shadow.enabled){
					if (ddsmoothmenu.detectwebkit){ //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
						this.$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){
		var mainmenuid='#'+setting.mainmenuid
		document.write('<style type="text/css">\n'
			+mainmenuid+', '+mainmenuid+' ul li a {background:'+setting.customtheme[0]+';}\n'
			+mainmenuid+' ul li a:hover {background:'+setting.customtheme[1]+';}\n'
		+'</style>')
	}
	jQuery(document).ready(function($){ //override default menu colors (default/hover) with custom set?
		if (typeof setting.contentsource=="object"){ //if external ajax menu
			ddsmoothmenu.getajaxmenu($, setting)
		}
		else{ //else if markup menu
			ddsmoothmenu.buildmenu($, setting)
		}
	})
}
 
} //end ddsmoothmenu variable
 
//Initialize Menu instance(s):
 
$(ddsmoothmenu.init({
        mainmenuid: "smoothmenu1", //menu DIV id
        //customtheme: ["#1c5a80", "#18374a"], //override default menu CSS background values? Uncomment: ["normal_background", "hover_background"]
        contentsource: "markup" //"markup" or ["container_id", "path_to_menu_file"]
        // contentsource: ["smoothcontainer", "wp-content/themes/blue-zinfandel-3column/main_menu.html"]
}));
 
 
CSS ------------------------
 
.ddsmoothmenu{
	position: relative;
	font-family: arial, sans-serif;
	font-size: 100%;
	font-weight: bold;
	background: #95d5f8; /*background of menu bar (default state) */
	width: 1030px;
	margin: 0 auto;
	padding: 0 0 0 0;
	height: 24px;
}
 
.ddsmoothmenu ul{
z-index:100;
margin: 0;
padding: 0;
list-style-type: none;
 
}
 
/*Top level list items*/
.ddsmoothmenu ul li{
position: relative;
display: inline;
float: left;
}
 
/*Top level menu link items style*/
.ddsmoothmenu ul li a{
display: block;
	background: #95d5f8; /*background of menu bar (default state) */
color: #333333;
padding: 5px 10px;
/* border-right: 1px solid #778; */
color: #2d2b2b;
text-decoration: none;
}
 
* html .ddsmoothmenu ul li a{ /*IE6 hack to get sub menu links to behave correctly*/
display: inline-block;
}
 
.ddsmoothmenu ul li a:link, .ddsmoothmenu ul li a:visited{
color: #333333;
}
 
.ddsmoothmenu ul li a:hover{
background: cornflowerblue; /*background of menu items during onmouseover (hover state)*/
color: #333333;
}
	
/*1st sub level menu*/
.ddsmoothmenu ul li ul{
position: absolute;
left: 0;
display: none; /*collapse all sub menus to begin with*/
visibility: hidden;
}
 
/*Sub level menu list items (undo style from Top level List Items)*/
.ddsmoothmenu ul li ul li{
display: list-item;
float: none;
}
 
/*All subsequent sub menu levels vertical offset after 1st level sub menu */
.ddsmoothmenu ul li ul li ul{
top: 0;
}
 
/* Sub level menu links style */
.ddsmoothmenu ul li ul li a{
font: normal 100% arial;
width: 160px; /*width of sub menus*/
padding: 5px;
margin: 0;
border-top-width: 0;
border-bottom: 1px solid gray;
}
 
	
/* ######### CSS classes applied to down and right arrow images  ######### */
 
.downarrowclass{
position: absolute;
top: 12px;
right: 7px;
}
 
.rightarrowclass{
position: absolute;
top: 6px;
right: 5px;
}
 
/* ######### CSS for shadow added to sub menus  ######### */
 
.ddshadow{
position: absolute;
left: 0;
top: 0;
width: 0;
height: 0;
background: silver;
}
 
.toplevelshadow{ /*shadow opacity. Doesn't work in IE*/
opacity: 0.8;
}
 
 
swfobject.js-----------------------------------------------------------------
 
<script type="text/javascript">
	    var flashvars = {};
		var params = {};
			params.wmode = "transparent";
        var attributes = {};
          
	  swfobject.embedSWF("http://www.csrussells.us/ibc/wp-content/themes/blue-zinfandel-3column/flash/ibc.swf", "header", "1030", "322", "9.0.0", "expressInstall.swf", flashvars, params, attributes);
    </script>