diff --git a/bower.json b/bower.json
index cc6952a..98cbfcf 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "perfect-scrollbar",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "homepage": "http://noraesae.github.io/perfect-scrollbar/",
   "authors": [
     "Hyunje Alex Jun <me@noraesae.net>"
diff --git a/min/perfect-scrollbar.min.css b/min/perfect-scrollbar.min.css
index 4c78d7a..07e5334 100644
--- a/min/perfect-scrollbar.min.css
+++ b/min/perfect-scrollbar.min.css
@@ -1,4 +1,4 @@
-/*! perfect-scrollbar - v0.5.1
+/*! perfect-scrollbar - v0.5.2
 * http://noraesae.github.com/perfect-scrollbar/
 * Copyright (c) 2014 Hyunje Alex Jun; Licensed MIT */
 
diff --git a/min/perfect-scrollbar.min.js b/min/perfect-scrollbar.min.js
index 1a2cff8..3681449 100644
--- a/min/perfect-scrollbar.min.js
+++ b/min/perfect-scrollbar.min.js
@@ -1,4 +1,4 @@
-/*! perfect-scrollbar - v0.5.1
+/*! perfect-scrollbar - v0.5.2
 * http://noraesae.github.com/perfect-scrollbar/
 * Copyright (c) 2014 Hyunje Alex Jun; Licensed MIT */
-(function(e){"use strict";"function"==typeof define&&define.amd?define(["jquery"],e):"object"==typeof exports?e(require("jquery")):e(jQuery)})(function(e){"use strict";var t={wheelSpeed:1,wheelPropagation:!1,minScrollbarLength:null,maxScrollbarLength:null,useBothWheelAxes:!1,useKeyboard:!0,suppressScrollX:!1,suppressScrollY:!1,scrollXMarginOffset:0,scrollYMarginOffset:0,includePadding:!1},n=function(){var e=0;return function(){var t=e;return e+=1,".perfect-scrollbar-"+t}}();e.fn.perfectScrollbar=function(o,r){return this.each(function(){var l=e.extend(!0,{},t),a=e(this);if("object"==typeof o?e.extend(!0,l,o):r=o,"update"===r)return a.data("perfect-scrollbar-update")&&a.data("perfect-scrollbar-update")(),a;if("destroy"===r)return a.data("perfect-scrollbar-destroy")&&a.data("perfect-scrollbar-destroy")(),a;if(a.data("perfect-scrollbar"))return a.data("perfect-scrollbar");a.addClass("ps-container");var s,i,c,d,u,p,f,v,h,b,g=e("<div class='ps-scrollbar-x-rail'></div>").appendTo(a),m=e("<div class='ps-scrollbar-y-rail'></div>").appendTo(a),w=e("<div class='ps-scrollbar-x'></div>").appendTo(g),T=e("<div class='ps-scrollbar-y'></div>").appendTo(m),L=parseInt(g.css("bottom"),10),y=L===L,I=y?null:parseInt(g.css("top"),10),C=parseInt(m.css("right"),10),S=C===C,x=S?null:parseInt(m.css("left"),10),D="rtl"===a.css("direction"),P=n(),X=parseInt(g.css("borderLeftWidth"),10)+parseInt(g.css("borderRightWidth"),10),Y=parseInt(g.css("borderTopWidth"),10)+parseInt(g.css("borderBottomWidth"),10),k=function(e,t){var n=e+t,o=d-h;b=0>n?0:n>o?o:n;var r=parseInt(b*(p-d)/(d-h),10);a.scrollTop(r)},E=function(e,t){var n=e+t,o=c-f;v=0>n?0:n>o?o:n;var r=parseInt(v*(u-c)/(c-f),10);a.scrollLeft(r)},M=function(e){return l.minScrollbarLength&&(e=Math.max(e,l.minScrollbarLength)),l.maxScrollbarLength&&(e=Math.min(e,l.maxScrollbarLength)),e},W=function(){var e={width:c,display:s?"inherit":"none"};e.left=D?a.scrollLeft()+c-u:a.scrollLeft(),y?e.bottom=L-a.scrollTop():e.top=I+a.scrollTop(),g.css(e);var t={top:a.scrollTop(),height:d,display:i?"inherit":"none"};S?t.right=D?u-a.scrollLeft()-C-T.outerWidth():C-a.scrollLeft():t.left=D?a.scrollLeft()+2*c-u-x-T.outerWidth():x+a.scrollLeft(),m.css(t),w.css({left:v,width:f-X}),T.css({top:b,height:h-Y}),s?a.addClass("ps-active-x"):a.removeClass("ps-active-x"),i?a.addClass("ps-active-y"):a.removeClass("ps-active-y")},j=function(){g.hide(),m.hide(),c=l.includePadding?a.innerWidth():a.width(),d=l.includePadding?a.innerHeight():a.height(),u=a.prop("scrollWidth"),p=a.prop("scrollHeight"),!l.suppressScrollX&&u>c+l.scrollXMarginOffset?(s=!0,f=M(parseInt(c*c/u,10)),v=parseInt(a.scrollLeft()*(c-f)/(u-c),10)):(s=!1,f=0,v=0,a.scrollLeft(0)),!l.suppressScrollY&&p>d+l.scrollYMarginOffset?(i=!0,h=M(parseInt(d*d/p,10)),b=parseInt(a.scrollTop()*(d-h)/(p-d),10)):(i=!1,h=0,b=0,a.scrollTop(0)),b>=d-h&&(b=d-h),v>=c-f&&(v=c-f),W(),g.show(),m.show()},O=function(){var t,n;w.bind("mousedown"+P,function(e){n=e.pageX,t=w.position().left,g.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove"+P,function(e){g.hasClass("in-scrolling")&&(E(t,e.pageX-n),j(),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup"+P,function(){g.hasClass("in-scrolling")&&g.removeClass("in-scrolling")}),t=n=null},q=function(){var t,n;T.bind("mousedown"+P,function(e){n=e.pageY,t=T.position().top,m.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove"+P,function(e){m.hasClass("in-scrolling")&&(k(t,e.pageY-n),j(),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup"+P,function(){m.hasClass("in-scrolling")&&m.removeClass("in-scrolling")}),t=n=null},A=function(e,t){var n=a.scrollTop();if(0===e){if(!i)return!1;if(0===n&&t>0||n>=p-d&&0>t)return!l.wheelPropagation}var o=a.scrollLeft();if(0===t){if(!s)return!1;if(0===o&&0>e||o>=u-c&&e>0)return!l.wheelPropagation}return!0},B=function(){var e=!1,t=function(e){var t=e.originalEvent.deltaX,n=-1*e.originalEvent.deltaY;return(t===void 0||n===void 0)&&(t=-1*e.originalEvent.wheelDeltaX/6,n=e.originalEvent.wheelDeltaY/6),e.originalEvent.deltaMode&&1===e.originalEvent.deltaMode&&(t*=10,n*=10),t!==t&&n!==n&&(t=0,n=e.originalEvent.wheelDelta),[t,n]},n=function(n){var o=t(n),r=o[0],c=o[1];e=!1,l.useBothWheelAxes?i&&!s?(c?a.scrollTop(a.scrollTop()-c*l.wheelSpeed):a.scrollTop(a.scrollTop()+r*l.wheelSpeed),e=!0):s&&!i&&(r?a.scrollLeft(a.scrollLeft()+r*l.wheelSpeed):a.scrollLeft(a.scrollLeft()-c*l.wheelSpeed),e=!0):(a.scrollTop(a.scrollTop()-c*l.wheelSpeed),a.scrollLeft(a.scrollLeft()+r*l.wheelSpeed)),j(),e=e||A(r,c),e&&(n.stopPropagation(),n.preventDefault())};window.onwheel!==void 0?a.bind("wheel"+P,n):window.onmousewheel!==void 0&&a.bind("mousewheel"+P,n)},H=function(){var t=!1;a.bind("mouseenter"+P,function(){t=!0}),a.bind("mouseleave"+P,function(){t=!1});var n=!1;e(document).bind("keydown"+P,function(o){if(!(o.isDefaultPrevented&&o.isDefaultPrevented()||!t||e(document.activeElement).is(":input,[contenteditable]"))){var r=0,l=0;switch(o.which){case 37:r=-30;break;case 38:l=30;break;case 39:r=30;break;case 40:l=-30;break;case 33:l=90;break;case 32:case 34:l=-90;break;case 35:l=-d;break;case 36:l=d;break;default:return}a.scrollTop(a.scrollTop()-l),a.scrollLeft(a.scrollLeft()+r),n=A(r,l),n&&o.preventDefault()}})},K=function(){var e=function(e){e.stopPropagation()};T.bind("click"+P,e),m.bind("click"+P,function(e){var t=parseInt(h/2,10),n=e.pageY-m.offset().top-t,o=d-h,r=n/o;0>r?r=0:r>1&&(r=1),a.scrollTop((p-d)*r)}),w.bind("click"+P,e),g.bind("click"+P,function(e){var t=parseInt(f/2,10),n=e.pageX-g.offset().left-t,o=c-f,r=n/o;0>r?r=0:r>1&&(r=1),a.scrollLeft((u-c)*r)})},Q=function(){var t=function(e,t){a.scrollTop(a.scrollTop()-t),a.scrollLeft(a.scrollLeft()-e),j()},n={},o=0,r={},l=null,s=!1;e(window).bind("touchstart"+P,function(){s=!0}),e(window).bind("touchend"+P,function(){s=!1}),a.bind("touchstart"+P,function(e){var t=e.originalEvent.targetTouches[0];n.pageX=t.pageX,n.pageY=t.pageY,o=(new Date).getTime(),null!==l&&clearInterval(l),e.stopPropagation()}),a.bind("touchmove"+P,function(e){if(!s&&1===e.originalEvent.targetTouches.length){var l=e.originalEvent.targetTouches[0],a={};a.pageX=l.pageX,a.pageY=l.pageY;var i=a.pageX-n.pageX,c=a.pageY-n.pageY;t(i,c),n=a;var d=(new Date).getTime(),u=d-o;u>0&&(r.x=i/u,r.y=c/u,o=d),e.preventDefault()}}),a.bind("touchend"+P,function(){clearInterval(l),l=setInterval(function(){return.01>Math.abs(r.x)&&.01>Math.abs(r.y)?(clearInterval(l),void 0):(t(30*r.x,30*r.y),r.x*=.8,r.y*=.8,void 0)},10)})},R=function(){a.bind("scroll"+P,function(){j()})},z=function(){a.unbind(P),e(window).unbind(P),e(document).unbind(P),a.data("perfect-scrollbar",null),a.data("perfect-scrollbar-update",null),a.data("perfect-scrollbar-destroy",null),w.remove(),T.remove(),g.remove(),m.remove(),g=m=w=T=s=i=c=d=u=p=f=v=L=y=I=h=b=C=S=x=D=P=null},F=function(t){a.addClass("ie").addClass("ie"+t);var n=function(){var t=function(){e(this).addClass("hover")},n=function(){e(this).removeClass("hover")};a.bind("mouseenter"+P,t).bind("mouseleave"+P,n),g.bind("mouseenter"+P,t).bind("mouseleave"+P,n),m.bind("mouseenter"+P,t).bind("mouseleave"+P,n),w.bind("mouseenter"+P,t).bind("mouseleave"+P,n),T.bind("mouseenter"+P,t).bind("mouseleave"+P,n)},o=function(){W=function(){var e={left:v+a.scrollLeft(),width:f};y?e.bottom=L:e.top=I,w.css(e);var t={top:b+a.scrollTop(),height:h};S?t.right=C:t.left=x,T.css(t),w.hide().show(),T.hide().show()}};6===t&&(n(),o())},G="ontouchstart"in window||window.DocumentTouch&&document instanceof window.DocumentTouch,J=function(){var e=navigator.userAgent.toLowerCase().match(/(msie) ([\w.]+)/);e&&"msie"===e[1]&&F(parseInt(e[2],10)),j(),R(),O(),q(),K(),B(),G&&Q(),l.useKeyboard&&H(),a.data("perfect-scrollbar",a),a.data("perfect-scrollbar-update",j),a.data("perfect-scrollbar-destroy",z)};return J(),a})}});
\ No newline at end of file
+(function(e){"use strict";"function"==typeof define&&define.amd?define(["jquery"],e):"object"==typeof exports?e(require("jquery")):e(jQuery)})(function(e){"use strict";var t={wheelSpeed:1,wheelPropagation:!1,minScrollbarLength:null,maxScrollbarLength:null,useBothWheelAxes:!1,useKeyboard:!0,suppressScrollX:!1,suppressScrollY:!1,scrollXMarginOffset:0,scrollYMarginOffset:0,includePadding:!1},o=function(){var e=0;return function(){var t=e;return e+=1,".perfect-scrollbar-"+t}}();e.fn.perfectScrollbar=function(n,r){return this.each(function(){var l=e.extend(!0,{},t),a=e(this);if("object"==typeof n?e.extend(!0,l,n):r=n,"update"===r)return a.data("perfect-scrollbar-update")&&a.data("perfect-scrollbar-update")(),a;if("destroy"===r)return a.data("perfect-scrollbar-destroy")&&a.data("perfect-scrollbar-destroy")(),a;if(a.data("perfect-scrollbar"))return a.data("perfect-scrollbar");a.addClass("ps-container");var s,i,c,d,u,p,f,v,h,b,g=e("<div class='ps-scrollbar-x-rail'></div>").appendTo(a),m=e("<div class='ps-scrollbar-y-rail'></div>").appendTo(a),w=e("<div class='ps-scrollbar-x'></div>").appendTo(g),T=e("<div class='ps-scrollbar-y'></div>").appendTo(m),L=parseInt(g.css("bottom"),10),y=L===L,I=y?null:parseInt(g.css("top"),10),S=parseInt(m.css("right"),10),C=S===S,x=C?null:parseInt(m.css("left"),10),D="rtl"===a.css("direction"),X=o(),Y=parseInt(g.css("borderLeftWidth"),10)+parseInt(g.css("borderRightWidth"),10),P=parseInt(g.css("borderTopWidth"),10)+parseInt(g.css("borderBottomWidth"),10),k=function(e,t){var o=e+t,n=d-h;b=0>o?0:o>n?n:o;var r=parseInt(b*(p-d)/(d-h),10);a.scrollTop(r)},E=function(e,t){var o=e+t,n=c-f;v=0>o?0:o>n?n:o;var r=parseInt(v*(u-c)/(c-f),10);a.scrollLeft(r)},M=function(e){return l.minScrollbarLength&&(e=Math.max(e,l.minScrollbarLength)),l.maxScrollbarLength&&(e=Math.min(e,l.maxScrollbarLength)),e},W=function(){var e={width:c,display:s?"inherit":"none"};e.left=D?a.scrollLeft()+c-u:a.scrollLeft(),y?e.bottom=L-a.scrollTop():e.top=I+a.scrollTop(),g.css(e);var t={top:a.scrollTop(),height:d,display:i?"inherit":"none"};C?t.right=D?u-a.scrollLeft()-S-T.outerWidth():S-a.scrollLeft():t.left=D?a.scrollLeft()+2*c-u-x-T.outerWidth():x+a.scrollLeft(),m.css(t),w.css({left:v,width:f-Y}),T.css({top:b,height:h-P}),s?a.addClass("ps-active-x"):a.removeClass("ps-active-x"),i?a.addClass("ps-active-y"):a.removeClass("ps-active-y")},j=function(){g.hide(),m.hide(),c=l.includePadding?a.innerWidth():a.width(),d=l.includePadding?a.innerHeight():a.height(),u=a.prop("scrollWidth"),p=a.prop("scrollHeight"),!l.suppressScrollX&&u>c+l.scrollXMarginOffset?(s=!0,f=M(parseInt(c*c/u,10)),v=parseInt(a.scrollLeft()*(c-f)/(u-c),10)):(s=!1,f=0,v=0,a.scrollLeft(0)),!l.suppressScrollY&&p>d+l.scrollYMarginOffset?(i=!0,h=M(parseInt(d*d/p,10)),b=parseInt(a.scrollTop()*(d-h)/(p-d),10)):(i=!1,h=0,b=0,a.scrollTop(0)),b>=d-h&&(b=d-h),v>=c-f&&(v=c-f),W(),l.suppressScrollX||g.show(),l.suppressScrollY||m.show()},O=function(){var t,o;w.bind("mousedown"+X,function(e){o=e.pageX,t=w.position().left,g.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove"+X,function(e){g.hasClass("in-scrolling")&&(E(t,e.pageX-o),j(),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup"+X,function(){g.hasClass("in-scrolling")&&g.removeClass("in-scrolling")}),t=o=null},q=function(){var t,o;T.bind("mousedown"+X,function(e){o=e.pageY,t=T.position().top,m.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove"+X,function(e){m.hasClass("in-scrolling")&&(k(t,e.pageY-o),j(),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup"+X,function(){m.hasClass("in-scrolling")&&m.removeClass("in-scrolling")}),t=o=null},A=function(e,t){var o=a.scrollTop();if(0===e){if(!i)return!1;if(0===o&&t>0||o>=p-d&&0>t)return!l.wheelPropagation}var n=a.scrollLeft();if(0===t){if(!s)return!1;if(0===n&&0>e||n>=u-c&&e>0)return!l.wheelPropagation}return!0},B=function(){var e=!1,t=function(e){var t=e.originalEvent.deltaX,o=-1*e.originalEvent.deltaY;return(t===void 0||o===void 0)&&(t=-1*e.originalEvent.wheelDeltaX/6,o=e.originalEvent.wheelDeltaY/6),e.originalEvent.deltaMode&&1===e.originalEvent.deltaMode&&(t*=10,o*=10),t!==t&&o!==o&&(t=0,o=e.originalEvent.wheelDelta),[t,o]},o=function(o){var n=t(o),r=n[0],c=n[1];e=!1,l.useBothWheelAxes?i&&!s?(c?a.scrollTop(a.scrollTop()-c*l.wheelSpeed):a.scrollTop(a.scrollTop()+r*l.wheelSpeed),e=!0):s&&!i&&(r?a.scrollLeft(a.scrollLeft()+r*l.wheelSpeed):a.scrollLeft(a.scrollLeft()-c*l.wheelSpeed),e=!0):(a.scrollTop(a.scrollTop()-c*l.wheelSpeed),a.scrollLeft(a.scrollLeft()+r*l.wheelSpeed)),j(),e=e||A(r,c),e&&(o.stopPropagation(),o.preventDefault())};window.onwheel!==void 0?a.bind("wheel"+X,o):window.onmousewheel!==void 0&&a.bind("mousewheel"+X,o)},H=function(){var t=!1;a.bind("mouseenter"+X,function(){t=!0}),a.bind("mouseleave"+X,function(){t=!1});var o=!1;e(document).bind("keydown"+X,function(n){if(!(n.isDefaultPrevented&&n.isDefaultPrevented()||!t||e(document.activeElement).is(":input,[contenteditable]"))){var r=0,l=0;switch(n.which){case 37:r=-30;break;case 38:l=30;break;case 39:r=30;break;case 40:l=-30;break;case 33:l=90;break;case 32:case 34:l=-90;break;case 35:l=-d;break;case 36:l=d;break;default:return}a.scrollTop(a.scrollTop()-l),a.scrollLeft(a.scrollLeft()+r),o=A(r,l),o&&n.preventDefault()}})},K=function(){var e=function(e){e.stopPropagation()};T.bind("click"+X,e),m.bind("click"+X,function(e){var t=parseInt(h/2,10),o=e.pageY-m.offset().top-t,n=d-h,r=o/n;0>r?r=0:r>1&&(r=1),a.scrollTop((p-d)*r)}),w.bind("click"+X,e),g.bind("click"+X,function(e){var t=parseInt(f/2,10),o=e.pageX-g.offset().left-t,n=c-f,r=o/n;0>r?r=0:r>1&&(r=1),a.scrollLeft((u-c)*r)})},Q=function(){var t=function(e,t){a.scrollTop(a.scrollTop()-t),a.scrollLeft(a.scrollLeft()-e),j()},o={},n=0,r={},l=null,s=!1;e(window).bind("touchstart"+X,function(){s=!0}),e(window).bind("touchend"+X,function(){s=!1}),a.bind("touchstart"+X,function(e){var t=e.originalEvent.targetTouches[0];o.pageX=t.pageX,o.pageY=t.pageY,n=(new Date).getTime(),null!==l&&clearInterval(l),e.stopPropagation()}),a.bind("touchmove"+X,function(e){if(!s&&1===e.originalEvent.targetTouches.length){var l=e.originalEvent.targetTouches[0],a={};a.pageX=l.pageX,a.pageY=l.pageY;var i=a.pageX-o.pageX,c=a.pageY-o.pageY;t(i,c),o=a;var d=(new Date).getTime(),u=d-n;u>0&&(r.x=i/u,r.y=c/u,n=d),e.preventDefault()}}),a.bind("touchend"+X,function(){clearInterval(l),l=setInterval(function(){return.01>Math.abs(r.x)&&.01>Math.abs(r.y)?(clearInterval(l),void 0):(t(30*r.x,30*r.y),r.x*=.8,r.y*=.8,void 0)},10)})},R=function(){a.bind("scroll"+X,function(){j()})},z=function(){a.unbind(X),e(window).unbind(X),e(document).unbind(X),a.data("perfect-scrollbar",null),a.data("perfect-scrollbar-update",null),a.data("perfect-scrollbar-destroy",null),w.remove(),T.remove(),g.remove(),m.remove(),g=m=w=T=s=i=c=d=u=p=f=v=L=y=I=h=b=S=C=x=D=X=null},F=function(t){a.addClass("ie").addClass("ie"+t);var o=function(){var t=function(){e(this).addClass("hover")},o=function(){e(this).removeClass("hover")};a.bind("mouseenter"+X,t).bind("mouseleave"+X,o),g.bind("mouseenter"+X,t).bind("mouseleave"+X,o),m.bind("mouseenter"+X,t).bind("mouseleave"+X,o),w.bind("mouseenter"+X,t).bind("mouseleave"+X,o),T.bind("mouseenter"+X,t).bind("mouseleave"+X,o)},n=function(){W=function(){var e={left:v+a.scrollLeft(),width:f};y?e.bottom=L:e.top=I,w.css(e);var t={top:b+a.scrollTop(),height:h};C?t.right=S:t.left=x,T.css(t),w.hide().show(),T.hide().show()}};6===t&&(o(),n())},G="ontouchstart"in window||window.DocumentTouch&&document instanceof window.DocumentTouch,J=function(){var e=navigator.userAgent.toLowerCase().match(/(msie) ([\w.]+)/);e&&"msie"===e[1]&&F(parseInt(e[2],10)),j(),R(),O(),q(),K(),B(),G&&Q(),l.useKeyboard&&H(),a.data("perfect-scrollbar",a),a.data("perfect-scrollbar-update",j),a.data("perfect-scrollbar-destroy",z)};return J(),a})}});
\ No newline at end of file
diff --git a/package.json b/package.json
index d879eba..6ee19d5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "perfect-scrollbar",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "main": "src/perfect-scrollbar.js",
   "engines": {
     "node": ">= 0.8.0"
diff --git a/perfect-scrollbar.jquery.json b/perfect-scrollbar.jquery.json
index a04787a..8dadfeb 100644
--- a/perfect-scrollbar.jquery.json
+++ b/perfect-scrollbar.jquery.json
@@ -2,7 +2,7 @@
   "name": "perfect-scrollbar",
   "title": "perfect-scrollbar",
   "description": "Tiny but perfect jquery scrollbar plugin.",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "author": {
     "name": "Hyunje Alex Jun",
     "email": "me@noraesae.net",