I'm making changes to a page that has a horizontal drop-down menu and a swf animation below it. The drop-down originally didn't go down far enough to overlap the swf, but with the added content it now does. The problem is that the menu falls behind the swf so you can't see some of the menu items. The menu bar was originally created using Dreamweaver's built-in Spry scripts.

Here's the script:

Code:
/* SpryMenuBar.js - Revision: Spry Preview Release 1.4 */

// Copyright (c) 2006. Adobe Systems Incorporated.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//   * Neither the name of Adobe Systems Incorporated nor the names of its
//     contributors may be used to endorse or promote products derived from this
//     software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

/*******************************************************************************

 SpryMenuBar.js
 This file handles the JavaScript for Spry Menu Bar.  You should have no need
 to edit this file.  Some highlights of the MenuBar object is that timers are
 used to keep submenus from showing up until the user has hovered over the parent
 menu item for some time, as well as a timer for when they leave a submenu to keep
 showing that submenu until the timer fires.

 *******************************************************************************/

var Spry;
if(!Spry)
{
	Spry = {};
}
if(!Spry.Widget)
{
	Spry.Widget = {};
}

// Constructor for Menu Bar
// element should be an ID of an unordered list (<ul> tag)
// preloadImage1 and preloadImage2 are images for the rollover state of a menu
Spry.Widget.MenuBar = function(element, opts)
{
	this.init(element, opts);
};

Spry.Widget.MenuBar.prototype.init = function(element, opts)
{
	this.element = this.getElement(element);

	// represents the current (sub)menu we are operating on
	this.currMenu = null;

	var isie = (typeof document.all != 'undefined' && typeof window.opera == 'undefined' && navigator.vendor != 'KDE');
	if(typeof document.getElementById == 'undefined' || (navigator.vendor == 'Apple Computer, Inc.' && typeof window.XMLHttpRequest == 'undefined') || (isie && typeof document.uniqueID == 'undefined'))
	{
		// bail on older unsupported browsers
		return;
	}

	// load hover images now
	if(opts)
	{
		for(var k in opts)
		{
			var rollover = new Image;
			rollover.src = opts[k];
		}
	}

	if(this.element)
	{
		this.currMenu = this.element;
		var items = this.element.getElementsByTagName('li');
		for(var i=0; i<items.length; i++)
		{
			this.initialize(items[i], element, isie);
			if(isie)
			{
				this.addClassName(items[i], "MenuBarItemIE");
				items[i].style.position = "static";
			}
		}
		if(isie)
		{
			if(this.hasClassName(this.element, "MenuBarVertical"))
			{
				this.element.style.position = "relative";
			}
			var linkitems = this.element.getElementsByTagName('a');
			for(var i=0; i<linkitems.length; i++)
			{
				linkitems[i].style.position = "relative";
			}
		}
	}
};

Spry.Widget.MenuBar.prototype.getElement = function(ele)
{
	if (ele && typeof ele == "string")
		return document.getElementById(ele);
	return ele;
};

Spry.Widget.MenuBar.prototype.hasClassName = function(ele, className)
{
	if (!ele || !className || !ele.className || ele.className.search(new RegExp("\\b" + className + "\\b")) == -1)
	{
		return false;
	}
	return true;
};

Spry.Widget.MenuBar.prototype.addClassName = function(ele, className)
{
	if (!ele || !className || this.hasClassName(ele, className))
		return;
	ele.className += (ele.className ? " " : "") + className;
};

Spry.Widget.MenuBar.prototype.removeClassName = function(ele, className)
{
	if (!ele || !className || !this.hasClassName(ele, className))
		return;
	ele.className = ele.className.replace(new RegExp("\\s*\\b" + className + "\\b", "g"), "");
};

// addEventListener for Menu Bar
// attach an event to a tag without creating obtrusive HTML code
Spry.Widget.MenuBar.prototype.addEventListener = function(element, eventType, handler, capture)
{
	try
	{
		if (element.addEventListener)
		{
			element.addEventListener(eventType, handler, capture);
		}
		else if (element.attachEvent)
		{
			element.attachEvent('on' + eventType, handler);
		}
	}
	catch (e) {}
};

// createIframeLayer for Menu Bar
// creates an IFRAME underneath a menu so that it will show above form controls and ActiveX
Spry.Widget.MenuBar.prototype.createIframeLayer = function(menu)
{
	var layer = document.createElement('iframe');
	layer.tabIndex = '-1';
	layer.src = 'javascript:false;';
	menu.parentNode.appendChild(layer);
	
	layer.style.left = menu.offsetLeft + 'px';
	layer.style.top = menu.offsetTop + 'px';
	layer.style.width = menu.offsetWidth + 'px';
	layer.style.height = menu.offsetHeight + 'px';
};

// removeIframeLayer for Menu Bar
// removes an IFRAME underneath a menu to reveal any form controls and ActiveX
Spry.Widget.MenuBar.prototype.removeIframeLayer =  function(menu)
{
	var layers = menu.parentNode.getElementsByTagName('iframe');
	while(layers.length > 0)
	{
		layers[0].parentNode.removeChild(layers[0]);
	}
};

// clearMenus for Menu Bar
// root is the top level unordered list (<ul> tag)
Spry.Widget.MenuBar.prototype.clearMenus = function(root)
{
	var menus = root.getElementsByTagName('ul');
	for(var i=0; i<menus.length; i++)
	{
		this.hideSubmenu(menus[i]);
	}
	this.removeClassName(this.element, "MenuBarActive");
};

// bubbledTextEvent for Menu Bar
// identify bubbled up text events in Safari so we can ignore them
Spry.Widget.MenuBar.prototype.bubbledTextEvent = function()
{
	return (navigator.vendor == 'Apple Computer, Inc.' && (event.target == event.relatedTarget.parentNode || (event.eventPhase == 3 && event.target.parentNode == event.relatedTarget)));
};

// showSubmenu for Menu Bar
// set the proper CSS class on this menu to show it
Spry.Widget.MenuBar.prototype.showSubmenu = function(menu)
{
	if(this.currMenu)
	{
		this.clearMenus(this.currMenu);
		this.currMenu = null;
	}
	
	if(menu)
	{
		this.addClassName(menu, "MenuBarSubmenuVisible");
		if(typeof document.all != 'undefined' && typeof window.opera == 'undefined' && navigator.vendor != 'KDE')
		{
			if(!this.hasClassName(this.element, "MenuBarHorizontal") || menu.parentNode.parentNode != this.element)
			{
				menu.style.top = menu.parentNode.offsetTop + 'px';
			}
		}
		if(typeof document.uniqueID != "undefined")
		{
			this.createIframeLayer(menu);
		}
	}
	this.addClassName(this.element, "MenuBarActive");
};

// hideSubmenu for Menu Bar
// remove the proper CSS class on this menu to hide it
Spry.Widget.MenuBar.prototype.hideSubmenu = function(menu)
{
	if(menu)
	{
		this.removeClassName(menu, "MenuBarSubmenuVisible");
		if(typeof document.all != 'undefined' && typeof window.opera == 'undefined' && navigator.vendor != 'KDE')
		{
			menu.style.top = '';
			menu.style.left = '';
		}
		this.removeIframeLayer(menu);
	}
};

// initialize for Menu Bar
// create event listeners for the Menu Bar widget so we can properly
// show and hide submenus
Spry.Widget.MenuBar.prototype.initialize = function(listitem, element, isie)
{
	var opentime, closetime;
	var link = listitem.getElementsByTagName('a')[0];
	var submenus = listitem.getElementsByTagName('ul');
	var menu = (submenus.length > 0 ? submenus[0] : null);

	var hasSubMenu = false;
	if(menu)
	{
		this.addClassName(link, "MenuBarItemSubmenu");
		hasSubMenu = true;
	}

	if(!isie)
	{
		// define a simple function that comes standard in IE to determine
		// if a node is within another node
		listitem.contains = function(testNode)
		{
			// this refers to the list item
			if(testNode == null)
			{
				return false;
			}
			if(testNode == this)
			{
				return true;
			}
			else
			{
				return this.contains(testNode.parentNode);
			}
		};
	}
	
	// need to save this for scope further down
	var self = this;

	this.addEventListener(listitem, 'mouseover', function(e)
	{
		if(self.bubbledTextEvent())
		{
			// ignore bubbled text events
			return;
		}
		clearTimeout(closetime);
		if(self.currMenu == listitem)
		{
			self.currMenu = null;
		}
		// show menu highlighting
		self.addClassName(link, hasSubMenu ? "MenuBarItemSubmenuHover" : "MenuBarItemHover");
		if(menu && !self.hasClassName(menu, "MenuBarSubmenuVisible"))
		{
			opentime = window.setTimeout(function(){self.showSubmenu(menu);}, 250);
		}
	}, false);

	this.addEventListener(listitem, 'mouseout', function(e)
	{
		if(self.bubbledTextEvent())
		{
			// ignore bubbled text events
			return;
		}

		var related = (typeof e.relatedTarget != 'undefined' ? e.relatedTarget : e.toElement);
		if(!listitem.contains(related))
		{
			clearTimeout(opentime);
			self.currMenu = listitem;

			// remove menu highlighting
			self.removeClassName(link, hasSubMenu ? "MenuBarItemSubmenuHover" : "MenuBarItemHover");
			if(menu)
			{
				closetime = window.setTimeout(function(){self.hideSubmenu(menu);}, 600);
			}
		}
	}, false);
};
CSS:

Code:
@charset "UTF-8";

/* SpryMenuBarHorizontal.css - Revision: Spry Preview Release 1.4 */

/* Copyright (c) 2006. Adobe Systems Incorporated. All rights reserved. */

/*******************************************************************************

 LAYOUT INFORMATION: describes box model, positioning, z-order

 *******************************************************************************/

/* The outermost container of the Menu Bar, an auto width box with no margin or padding */
ul.MenuBarHorizontal
{
	list-style-type: none;
	font-size: 105%;
	cursor: default;
	width: 100%;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-weight: bold;
	padding-top: 0;
	padding-right: 0;
	padding-bottom: 0;
	padding-left: 0;
	margin-top: 0;
	margin-bottom: 0;
	margin-right: 0;
	margin-left: 0;
}
/* Set the active Menu Bar with this class, currently setting z-index to accomodate IE rendering bug: http://therealcrisp.xs4all.nl/meuk/IE-zindexbug.html */
ul.MenuBarActive
{
	z-index: 1000;
}
/* Menu item containers, position children relative to this container and are a fixed width */
ul.MenuBarHorizontal li
{
	margin: 0;
	padding: 0;
	list-style-type: none;
	font-size: 100%;
	position: relative;
	text-align: left;
	cursor: pointer;
	width: 139px;
	float: left;
	text-align:center;
}
/* Submenus should appear below their parent (top: 0) with a higher z-index, but they are initially off the left side of the screen (-1000em) */
ul.MenuBarHorizontal ul
{
	margin: 0;
	padding: 0;
	list-style-type: none;
	font-size: 100%;
	z-index: 1020;
	cursor: default;
	width: 150px;
	position: absolute;
	left: -1000em;
}
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to auto so it comes onto the screen below its parent menu item */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible
{
	left: auto;
}
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
{
	width:190px;
}
/* Submenus should appear slightly overlapping to the right (95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
{
	position: absolute;
	margin: -5% 0 0 95%;
}
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to 0 so it comes onto the screen */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible ul.MenuBarSubmenuVisible
{
	left: auto;
	top: 0;
}

/*******************************************************************************

 DESIGN INFORMATION: describes color scheme, borders, fonts

 *******************************************************************************/

/* Submenu containers have borders on all sides */
ul.MenuBarHorizontal ul
{
	border: 1px solid #CCC;
}
/* Menu items are a light gray block with padding and no text decoration */
ul.MenuBarHorizontal a
{
	display: block;
	cursor: pointer;
	background-color: #EEE;
	padding: 5px 7px;
	color: #333;
	text-decoration: none;
}
/* Menu items that have mouse over or focus have a blue background and white text */
ul.MenuBarHorizontal a:hover, ul.MenuBarHorizontal a:focus
{
	background-color: #FE4D0C;
	color: #FFF;
}
/* Menu items that are open with submenus are set to MenuBarItemHover with a blue background and white text */
ul.MenuBarHorizontal a.MenuBarItemHover, ul.MenuBarHorizontal a.MenuBarItemSubmenuHover, ul.MenuBarHorizontal a.MenuBarSubmenuVisible
{
	background-color: #FF6B3E;
	color: #FFF;
}

/*******************************************************************************

 SUBMENU INDICATION: styles if there is a submenu under a given menu item

 *******************************************************************************/

/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenu
{
	background-image: url(SpryMenuBarDown.gif);
	background-repeat: no-repeat;
	background-position: 95% 50%;
}
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenu
{
	background-image: url(SpryMenuBarRight.gif);
	background-repeat: no-repeat;
	background-position: 95% 50%;
}
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenuHover
{
	background-image: url(SpryMenuBarDownHover.gif);
	background-repeat: no-repeat;
	background-position: 95% 50%;
}
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenuHover
{
	background-image: url(SpryMenuBarRightHover.gif);
	background-repeat: no-repeat;
	background-position: 95% 50%;
}

/*******************************************************************************

 BROWSER HACKS: the hacks below should not be changed unless you are an expert

 *******************************************************************************/

/* HACK FOR IE: to make sure the sub menus show above form controls, we underlay each submenu with an iframe */
ul.MenuBarHorizontal iframe
{
	position: absolute;
	z-index: 1010;
}
/* HACK FOR IE: to stabilize appearance of menu items; the slash in float is to keep IE 5.0 from parsing */
@media screen, projection
{
	ul.MenuBarHorizontal li.MenuBarItemIE
	{
		display: inline;
		f\loat: left;
		background: #FFF;
	}
}

Here's the script I used to embed the swf:
Code:
<script type="text/javascript" src="swfobject.js"></script>
<script type="text/javascript">
      swfobject.embedSWF("flash/index.swf", "myContent", "200", "160", "9.0.0", "expressInstall.swf");
</script>
And some of the HTML
Code:
<ul id="MenuBar1" class="MenuBarHorizontal">
          <li>
            <a href="#" class="MenuBarItemSubmenu">eBook</a>
                  <ul>
                    <li><a href="http://store.vitalsource.com/show/0558501931">ECO 2013 – Macroeconomics, 9e</a></li>
                    <li><a href="http://store.vitalsource.com/show/0558496202">ECO 2023 – Microeconomics, 9e</a></li>
                    <li><a href="http://store.vitalsource.com/show/0558501915">ECO 2013/2023 – Economics, 9e</a></li>
                  </ul>
          </li>
            <li>
              <a href="instructions.html" target="_blank">eBook Instructions</a></div>
            </li>
            <li>
              <a href="#" class="MenuBarItemSubmenu">Buy Access</a>
                  <ul>
                    <li><a href="http://store.vitalsource.com/show/0558501931">ECO 2013 – Macroeconomics, 9e</a></li>
                    <li><a href="http://store.vitalsource.com/show/0558496202">ECO 2023 – Microeconomics, 9e</a></li>
                    <li><a href="http://store.vitalsource.com/show/0558501915">ECO 2013/2023 – Economics, 9e</a></li>
                  </ul>
            </li>
            <li>
              <a href="#" class="MenuBarItemSubmenu">Help</a>
                  <ul>
                    <li><a href="http://247pearsoned.custhelp.com/">24/7 Phone Support: 800-610-5382</a></li>
                    <li><a href="mailto:support@vitalsource.com">E-Mail: support@vitalsource.com</a></li>
                  </ul>
              
            </li>
            <li>
              <a href="#" class="MenuBarItemSubmenu">Useful Links</a>
                  <ul>
                    <li><a href="http://www.ufl.edu/" target="_blank">UF Home</a></li>
                    <li><a href="http://www.cba.ufl.edu/eco/" target="_blank">Department of Economics</a></li>
                </ul>
              
            </li>
        </ul>

Code:
  <div id="myContent">
                                                <h1>Alternative content</h1>
                                                <p><a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash player" /></a></p>
                </div>
You can see that the CSS calls for the menus to have a higher z-index than other content on the page, so it should appear on top. So there seems to be some problem with the way the flash content is implemented. Can anyone help me with this issue? Thanks.