diff --git a/jquery.mobilemenu.js b/jquery.mobilemenu.js
index ef2ec18..742e7f7 100644
--- a/jquery.mobilemenu.js
+++ b/jquery.mobilemenu.js
@@ -4,44 +4,98 @@
  * version 1.0(31-OCT-2011)
  * 
  * Built on top of the jQuery library
- *   http://jquery.com
+ *	 http://jquery.com
  * 
  * Documentation
- * 	 http://github.com/mambows/mobilemenu
+ *	 http://github.com/mambows/mobilemenu
  */
 (function($){
+
+// variable for storing the menu count when no ID is present
+var menuCount = 0;
+
 $.fn.mobileMenu = function(options) {
 	
 	var defaults = {
+			switchWidth: 481,
 			defaultText: 'Navigate to...',
-			className: 'select-menu',
-			subMenuClass: 'sub-menu',
+			className: 'mobileMenu',
+			subMenuClass: 'mobileMenu-subMenu',
 			subMenuDash: '–'
 		},
 		settings = $.extend( defaults, options ),
 		el = $(this);
 	
-	this.each(function(){
+	// function to check if selector matches a list
+	function isList($this){
+		return $this.is('ul, ol');
+	}
+
+
+	// function to decide if mobile or not
+	function isMobile(){
+		return ($(window).width() < settings.switchWidth);
+	}
+	
+	
+	// check if dropdown exists for the current element
+	function menuExists($this){
+		
+		// if the list has an ID, use it to give the menu an ID
+		if($this.attr('id')){
+			return ($('#mobileMenu_'+$this.attr('id')).length > 0);
+		} 
+		
+		// otherwise, give the list and select elements a generated ID
+		else {
+			menuCount++;
+			$this.attr('id', 'mm'+menuCount);
+			return ($('#mobileMenu_mm'+menuCount).length > 0);
+		}
+	}
+	
+	
+	// change page on mobile menu selection
+	function goToPage($this){
+		if($this.val() !== null){document.location.href = $this.val()}
+	}
+	
+	
+	// show the mobile menu
+	function showMenu($this){
+		$this.hide('display', 'none');
+		$('#mobileMenu_'+$this.attr('id')).show();
+	}
+	
+	
+	// hide the mobile menu
+	function hideMenu($this){
+		$this.css('display', '');
+		$('#mobileMenu_'+$this.attr('id')).hide();
+	}
+
+	function createMenu($this){
 		// ad class to submenu list
 		el.find('ul').addClass(settings.subMenuClass);
 
 		// Create base menu
 		$('<select />',{
-			'class' : settings.className
+			'class' : settings.className,
+			'id' : 'mobileMenu_'+$this.attr('id')
 		}).insertAfter( el );
 
 		// Create default option
 		$('<option />', {
-			"value"		: '#',
+			"value" : '#',
 			"text"		: settings.defaultText
 		}).appendTo( '.' + settings.className );
 
 		// Create select option from menu
 		el.find('a').each(function(){
-			var $this 	= $(this),
-					optText	= '&nbsp;' + $this.text(),
+			var $this = $(this),
+					optText = '&nbsp;' + $this.text(),
 					optSub	= $this.parents( '.' + settings.subMenuClass ),
-					len			= optSub.length,
+					len	 = optSub.length,
 					dash;
 			
 			// if menu has sub menu
@@ -52,7 +106,7 @@ $.fn.mobileMenu = function(options) {
 
 			// Now build menu and append it
 			$('<option />', {
-				"value"	: this.href,
+				"value" : this.href,
 				"html"	: optText,
 				"selected" : (this.href == window.location.href)
 			}).appendTo( '.' + settings.className );
@@ -67,9 +121,42 @@ $.fn.mobileMenu = function(options) {
 			};
 		});
 
-	}); // End this.each
+	} // End this.each
+	
+	// plugin functionality
+	function run($this){
+		
+		// menu doesn't exist
+		if(isMobile() && !menuExists($this)){
+			createMenu($this);
+		}
+		
+		// menu already exists
+		else if(isMobile() && menuExists($this)){
+			showMenu($this);
+		}
+		
+		// not mobile browser
+		else if(!isMobile() && menuExists($this)){
+			hideMenu($this);
+		}
+
+	}
+	
+	// run plugin on each matched ul/ol
+	// maintain chainability by returning "this"
+	return this.each(function() {
+		
+		// cache "this"
+		var $this = $(this);
+	
+		// bind event to browser resize
+		$(window).resize(function(){run($this);});
+
+		// run plugin
+		run($this);
 
-	return this;
+	});
 
 };
 })(jQuery);
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