...I installed a css drop down menu ages ago, its modified so that it dynamically generates the categories across the main top line, and subcategories/products drop down in a box when scrolled over. In modifying my website would like to add images to the top line when that dropdown category is selected, plus set of images to form a box around the dropdown category (one top image, one bottom image, and an image separating each li item), lastly an arrow on the side of submenus to the next submenu.

I have the pics ready and its all working on another javascript menu, but am trying to apply the same to my css menu. This is my current css code:


Code:
:
div#dropMenu li a:hover, div#dropMenu li.submenu li.submenu:hover {color: #eb2e83!important;background:#ffffff;}

#dropMenuWrapper {
	width:100%;
	height:25px;
	margin:0;
	font-size:12px;
	}
div#dropMenu {
  	width:100%;
  	margin:0 auto;
    text-align:center;
	z-index:1000;
	position:relative;
	}
div#dropMenu ul {
	margin: 0; 
	padding: 0;
	}
div#dropMenu li {
	position: relative; 
	list-style: none; 
	margin: 0; 
	float: left; 
	line-height: 1em;
	}
div#dropMenu ul.level1 {
	width:75%; 
	margin:0 auto; 
	text-align:center;
	background:#ffffff;
	border-top:0px solid #ffffff;
	border-bottom: 0px solid #ffffff;
	height:25px;
	z-index:1000;
	}
div#dropMenu li:hover {}
div#dropMenu li.submenu {}
div#dropMenu li.submenu:hover {}
div#dropMenu li a {display: block; padding: 7px 25px ;text-decoration: none; color:#400000; text-align:center; border-left:1px solid #ffffff;} 
div#dropMenu>ul a {width: auto;}
div#dropMenu ul ul {position: absolute; width: 13em;display: none;}
div#dropMenu ul ul li {background-image:url('images/hr.gif');
  background-repeat: repeat-x;
  background-position: left bottom; width:13em;}
div#dropMenu li.submenu li.submenu {}
div#dropMenu ul.level1 li.submenu:hover ul.level2, 
div#dropMenu ul.level2 li.submenu:hover ul.level3,
div#dropMenu ul.level3 li.submenu:hover ul.level4,
div#dropMenu ul.level4 li.submenu:hover ul.level5 {display:block;z-index:1000;}
div#dropMenu ul.level2 {top: 2.17em; background:#ffffff;z-index:1000;}
div#dropMenu ul.level3, div#dropMenu ul.level4, div#dropMenu ul.level5 {top: 0; left: 13em; background:#ffffff}
div#dropMenu ul.level2 a {padding: 0.5em 0.25em;color: #400000; text-transform:none;}  /* this is text color on drop-down submenu */
div#dropMenu ul.level2 a:hover {color:#eb2e83;}
The image I would like to appear behind the top selected category is "item1.png",
The image I would like to appear at the top of the dropdown category box is "submenu-top.gif"
The image for the bottom of the dropdown category box is "submenu-bottom.gif"
The image to go in between submenu items is "hr.gif"
The arrow to go next to submenu items which have further subcategories is "arrow.gif"

How/where do I put those images in?