diff --git a/bootstrap-hover-dropdown.js b/bootstrap-hover-dropdown.js
index 521ef35..155bf6b 100644
--- a/bootstrap-hover-dropdown.js
+++ b/bootstrap-hover-dropdown.js
@@ -31,11 +31,15 @@
             var $this = $(this),
                 $parent = $this.parent(),
                 defaults = {
-                    delay: 500,
+                    delayClose: 1000,
+                    delayOpen: 300,
+                    delaySwitch: 100,
                     instantlyCloseOthers: true
                 },
                 data = {
-                    delay: $(this).data('delay'),
+                    delayClose: $(this).data('delay-close'),
+                    delayOpen: $(this).data('delay-open'),
+                    delaySwitch: $(this).data('delay-switch'),
                     instantlyCloseOthers: $(this).data('close-others')
                 },
                 showEvent   = 'show.bs.dropdown',
@@ -43,35 +47,70 @@
                 // shownEvent  = 'shown.bs.dropdown',
                 // hiddenEvent = 'hidden.bs.dropdown',
                 settings = $.extend(true, {}, defaults, options, data),
-                timeout;
+                timeoutOpen,
+                timeoutClose;
+
 
             $parent.hover(function (event) {
+
                 // so a neighbor can't open the dropdown
-                if(!$parent.hasClass('open') && !$this.is(event.target)) {
+            	// FIX: see https://github.com/CWSpear/bootstrap-hover-dropdown/issues/55
+                if($parent.hasClass('open') && !$this.is(event.target)) {
                     // stop this event, stop executing any code
                     // in this callback but continue to propagate
                     return true;
                 }
 
-                openDropdown(event);
+                var isChildMenu = $parent.parents('.dropdown-menu').length,
+                    siblingIsOpen = $parent.siblings().hasClass('open');
+
+                window.clearTimeout(timeoutClose);
+
+                timeoutOpen = window.setTimeout(function(){
+                    openDropdown(event);
+                }, siblingIsOpen || isChildMenu ? settings.delaySwitch : settings.delayOpen);
+
+
+
             }, function () {
-                timeout = window.setTimeout(function () {
+                clearTimeout(timeoutOpen);
+
+                var isChildMenu = $parent.parents('.dropdown-menu').length;
+
+                timeoutClose = window.setTimeout(function () {
                     $parent.removeClass('open');
                     $this.trigger(hideEvent);
-                }, settings.delay);
+                }, timeoutOpen && !isChildMenu ? settings.delayClose : settings.delaySwitch);
             });
+            
+            // clear timeout if hovering submenu
+            $allDropdowns.find('.dropdown-menu').hover(function(){
+            	window.clearTimeout(timeoutClose);
+            }, function(){
+
+                var isChildMenu = $(this).parents('.dropdown-menu').length;
 
+                if(isChildMenu){
+                    return true;
+                }
+
+                timeoutClose = window.setTimeout(function () {
+                    $parent.removeClass('open');
+                    $this.trigger(hideEvent);
+                }, timeoutOpen > 0 ? settings.delayClose : 0);
+            });
+            
+            
             // this helps with button groups!
             $this.hover(function (event) {
                 // this helps prevent a double event from firing.
                 // see https://github.com/CWSpear/bootstrap-hover-dropdown/issues/55
-                if(!$parent.hasClass('open') && !$parent.is(event.target)) {
+                if($parent.hasClass('open') && !$parent.is(event.target)) {
                     // stop this event, stop executing any code
                     // in this callback but continue to propagate
                     return true;
                 }
 
-                openDropdown(event);
             });
 
             // handle submenus
@@ -87,17 +126,25 @@
                     var $submenu = $this.children('.dropdown-menu');
                     subTimeout = window.setTimeout(function () {
                         $submenu.hide();
-                    }, settings.delay);
+                    }, timeoutOpen > 0 ? settings.delayClose : 0);
                 });
             });
 
             function openDropdown(event) {
                 $allDropdowns.find(':focus').blur();
 
-                if(settings.instantlyCloseOthers === true)
-                    $allDropdowns.removeClass('open');
+                if(settings.instantlyCloseOthers === true){
+
+                    // not the first level
+                    if($this.parents('.dropdown-menu').length && $this.siblings().parent().hasClass('open')){
+                        $this.siblings().parent().removeClass('open');
+                    }else{
+                        $this.parent('li').siblings().removeClass('open');
+                    }
+                }
+
 
-                window.clearTimeout(timeout);
+                window.clearTimeout(timeoutClose);
                 $parent.addClass('open');
                 $this.trigger(showEvent);
             }
diff --git a/bootstrap-hover-dropdown.min.js b/bootstrap-hover-dropdown.min.js
index 51a81ef..bd2f7f7 100644
--- a/bootstrap-hover-dropdown.min.js
+++ b/bootstrap-hover-dropdown.min.js
@@ -1,13 +1 @@
-/**
- * Project: Bootstrap Hover Dropdown
- * Author: Cameron Spear
- * Contributors: Mattia Larentis
- *
- * Dependencies: Bootstrap's Dropdown plugin, jQuery
- *
- * A simple plugin to enable Bootstrap dropdowns to active on hover and provide a nice user experience.
- *
- * License: MIT
- *
- * http://cameronspear.com/blog/bootstrap-dropdown-on-hover-plugin/
- */(function(e,t,n){var r=e();e.fn.dropdownHover=function(n){if("ontouchstart"in document)return this;r=r.add(this.parent());return this.each(function(){function h(e){r.find(":focus").blur();l.instantlyCloseOthers===!0&&r.removeClass("open");t.clearTimeout(c);s.addClass("open");i.trigger(a)}var i=e(this),s=i.parent(),o={delay:500,instantlyCloseOthers:!0},u={delay:e(this).data("delay"),instantlyCloseOthers:e(this).data("close-others")},a="show.bs.dropdown",f="hide.bs.dropdown",l=e.extend(!0,{},o,n,u),c;s.hover(function(e){if(!s.hasClass("open")&&!i.is(e.target))return!0;h(e)},function(){c=t.setTimeout(function(){s.removeClass("open");i.trigger(f)},l.delay)});i.hover(function(e){if(!s.hasClass("open")&&!s.is(e.target))return!0;h(e)});s.find(".dropdown-submenu").each(function(){var n=e(this),r;n.hover(function(){t.clearTimeout(r);n.children(".dropdown-menu").show();n.siblings().children(".dropdown-menu").hide()},function(){var e=n.children(".dropdown-menu");r=t.setTimeout(function(){e.hide()},l.delay)})})})};e(document).ready(function(){e('[data-hover="dropdown"]').dropdownHover()})})(jQuery,this);
\ No newline at end of file
+(function(b,a,c){var d=b();b.fn.dropdownHover=function(e){if("ontouchstart" in document){return this}d=d.add(this.parent());return this.each(function(){var l=b(this),i=l.parent(),h={delayClose:1000,delayOpen:300,delaySwitch:100,instantlyCloseOthers:true},j={delayClose:b(this).data("delay-close"),delayOpen:b(this).data("delay-open"),delaySwitch:b(this).data("delay-switch"),instantlyCloseOthers:b(this).data("close-others")},n="show.bs.dropdown",f="hide.bs.dropdown",g=b.extend(true,{},h,e,j),o,k;i.hover(function(q){if(i.hasClass("open")&&!l.is(q.target)){return true}a.clearTimeout(k);var p=i.parents(".dropdown-menu").length;o=a.setTimeout(function(){m(q)},o>0||p?g.delaySwitch:g.delayOpen)},function(){clearTimeout(o);var p=i.parents(".dropdown-menu").length;k=a.setTimeout(function(){i.removeClass("open");l.trigger(f)},o&&!p?g.delayClose:g.delaySwitch)});d.find(".dropdown-menu").hover(function(){a.clearTimeout(k)},function(){var p=b(this).parents(".dropdown-menu").length;if(p){return true}k=a.setTimeout(function(){i.removeClass("open");l.trigger(f)},o>0?g.delayClose:0)});l.hover(function(p){if(i.hasClass("open")&&!i.is(p.target)){return true}o=a.setTimeout(function(){m(p)},o>0?0:g.delayOpen)});i.find(".dropdown-submenu").each(function(){var q=b(this);var p;q.hover(function(){a.clearTimeout(p);q.children(".dropdown-menu").show();q.siblings().children(".dropdown-menu").hide()},function(){var r=q.children(".dropdown-menu");p=a.setTimeout(function(){r.hide()},o>0?g.delayClose:0)})});function m(p){d.find(":focus").blur();if(g.instantlyCloseOthers===true){if(l.parents(".dropdown-menu").length&&l.siblings().parent().hasClass("open")){l.siblings().parent().removeClass("open")}else{l.parent("li").siblings().removeClass("open")}}a.clearTimeout(k);i.addClass("open");l.trigger(n)}})};b(document).ready(function(){b('[data-hover="dropdown"]').dropdownHover()})})(jQuery,this);
\ No newline at end of file