diff --git a/present/appengine.go b/present/appengine.go
index f8549a2..98b412c 100644
--- a/present/appengine.go
+++ b/present/appengine.go
@@ -14,6 +14,6 @@
 var basePath = "./present/"
 
 func init() {
-	playScript(basePath, "jquery.js", "playground.js")
+	playScript(basePath, "playground.js")
 	present.PlayEnabled = true
 }
diff --git a/present/js/jquery-ui.js b/present/js/jquery-ui.js
new file mode 100644
index 0000000..f391938
--- /dev/null
+++ b/present/js/jquery-ui.js
@@ -0,0 +1,6 @@
+/*! jQuery UI - v1.10.2 - 2013-03-20
+* http://jqueryui.com
+* Includes: jquery.ui.core.js, jquery.ui.widget.js, jquery.ui.mouse.js, jquery.ui.resizable.js
+* Copyright 2013 jQuery Foundation and other contributors Licensed MIT */
+
+(function(e,t){function i(t,i){var a,n,r,o=t.nodeName.toLowerCase();return"area"===o?(a=t.parentNode,n=a.name,t.href&&n&&"map"===a.nodeName.toLowerCase()?(r=e("img[usemap=#"+n+"]")[0],!!r&&s(r)):!1):(/input|select|textarea|button|object/.test(o)?!t.disabled:"a"===o?t.href||i:i)&&s(t)}function s(t){return e.expr.filters.visible(t)&&!e(t).parents().addBack().filter(function(){return"hidden"===e.css(this,"visibility")}).length}var a=0,n=/^ui-id-\d+$/;e.ui=e.ui||{},e.extend(e.ui,{version:"1.10.2",keyCode:{BACKSPACE:8,COMMA:188,DELETE:46,DOWN:40,END:35,ENTER:13,ESCAPE:27,HOME:36,LEFT:37,NUMPAD_ADD:107,NUMPAD_DECIMAL:110,NUMPAD_DIVIDE:111,NUMPAD_ENTER:108,NUMPAD_MULTIPLY:106,NUMPAD_SUBTRACT:109,PAGE_DOWN:34,PAGE_UP:33,PERIOD:190,RIGHT:39,SPACE:32,TAB:9,UP:38}}),e.fn.extend({focus:function(t){return function(i,s){return"number"==typeof i?this.each(function(){var t=this;setTimeout(function(){e(t).focus(),s&&s.call(t)},i)}):t.apply(this,arguments)}}(e.fn.focus),scrollParent:function(){var t;return t=e.ui.ie&&/(static|relative)/.test(this.css("position"))||/absolute/.test(this.css("position"))?this.parents().filter(function(){return/(relative|absolute|fixed)/.test(e.css(this,"position"))&&/(auto|scroll)/.test(e.css(this,"overflow")+e.css(this,"overflow-y")+e.css(this,"overflow-x"))}).eq(0):this.parents().filter(function(){return/(auto|scroll)/.test(e.css(this,"overflow")+e.css(this,"overflow-y")+e.css(this,"overflow-x"))}).eq(0),/fixed/.test(this.css("position"))||!t.length?e(document):t},zIndex:function(i){if(i!==t)return this.css("zIndex",i);if(this.length)for(var s,a,n=e(this[0]);n.length&&n[0]!==document;){if(s=n.css("position"),("absolute"===s||"relative"===s||"fixed"===s)&&(a=parseInt(n.css("zIndex"),10),!isNaN(a)&&0!==a))return a;n=n.parent()}return 0},uniqueId:function(){return this.each(function(){this.id||(this.id="ui-id-"+ ++a)})},removeUniqueId:function(){return this.each(function(){n.test(this.id)&&e(this).removeAttr("id")})}}),e.extend(e.expr[":"],{data:e.expr.createPseudo?e.expr.createPseudo(function(t){return function(i){return!!e.data(i,t)}}):function(t,i,s){return!!e.data(t,s[3])},focusable:function(t){return i(t,!isNaN(e.attr(t,"tabindex")))},tabbable:function(t){var s=e.attr(t,"tabindex"),a=isNaN(s);return(a||s>=0)&&i(t,!a)}}),e("<a>").outerWidth(1).jquery||e.each(["Width","Height"],function(i,s){function a(t,i,s,a){return e.each(n,function(){i-=parseFloat(e.css(t,"padding"+this))||0,s&&(i-=parseFloat(e.css(t,"border"+this+"Width"))||0),a&&(i-=parseFloat(e.css(t,"margin"+this))||0)}),i}var n="Width"===s?["Left","Right"]:["Top","Bottom"],r=s.toLowerCase(),o={innerWidth:e.fn.innerWidth,innerHeight:e.fn.innerHeight,outerWidth:e.fn.outerWidth,outerHeight:e.fn.outerHeight};e.fn["inner"+s]=function(i){return i===t?o["inner"+s].call(this):this.each(function(){e(this).css(r,a(this,i)+"px")})},e.fn["outer"+s]=function(t,i){return"number"!=typeof t?o["outer"+s].call(this,t):this.each(function(){e(this).css(r,a(this,t,!0,i)+"px")})}}),e.fn.addBack||(e.fn.addBack=function(e){return this.add(null==e?this.prevObject:this.prevObject.filter(e))}),e("<a>").data("a-b","a").removeData("a-b").data("a-b")&&(e.fn.removeData=function(t){return function(i){return arguments.length?t.call(this,e.camelCase(i)):t.call(this)}}(e.fn.removeData)),e.ui.ie=!!/msie [\w.]+/.exec(navigator.userAgent.toLowerCase()),e.support.selectstart="onselectstart"in document.createElement("div"),e.fn.extend({disableSelection:function(){return this.bind((e.support.selectstart?"selectstart":"mousedown")+".ui-disableSelection",function(e){e.preventDefault()})},enableSelection:function(){return this.unbind(".ui-disableSelection")}}),e.extend(e.ui,{plugin:{add:function(t,i,s){var a,n=e.ui[t].prototype;for(a in s)n.plugins[a]=n.plugins[a]||[],n.plugins[a].push([i,s[a]])},call:function(e,t,i){var s,a=e.plugins[t];if(a&&e.element[0].parentNode&&11!==e.element[0].parentNode.nodeType)for(s=0;a.length>s;s++)e.options[a[s][0]]&&a[s][1].apply(e.element,i)}},hasScroll:function(t,i){if("hidden"===e(t).css("overflow"))return!1;var s=i&&"left"===i?"scrollLeft":"scrollTop",a=!1;return t[s]>0?!0:(t[s]=1,a=t[s]>0,t[s]=0,a)}})})(jQuery);(function(e,t){var i=0,s=Array.prototype.slice,n=e.cleanData;e.cleanData=function(t){for(var i,s=0;null!=(i=t[s]);s++)try{e(i).triggerHandler("remove")}catch(a){}n(t)},e.widget=function(i,s,n){var a,r,o,h,l={},u=i.split(".")[0];i=i.split(".")[1],a=u+"-"+i,n||(n=s,s=e.Widget),e.expr[":"][a.toLowerCase()]=function(t){return!!e.data(t,a)},e[u]=e[u]||{},r=e[u][i],o=e[u][i]=function(e,i){return this._createWidget?(arguments.length&&this._createWidget(e,i),t):new o(e,i)},e.extend(o,r,{version:n.version,_proto:e.extend({},n),_childConstructors:[]}),h=new s,h.options=e.widget.extend({},h.options),e.each(n,function(i,n){return e.isFunction(n)?(l[i]=function(){var e=function(){return s.prototype[i].apply(this,arguments)},t=function(e){return s.prototype[i].apply(this,e)};return function(){var i,s=this._super,a=this._superApply;return this._super=e,this._superApply=t,i=n.apply(this,arguments),this._super=s,this._superApply=a,i}}(),t):(l[i]=n,t)}),o.prototype=e.widget.extend(h,{widgetEventPrefix:r?h.widgetEventPrefix:i},l,{constructor:o,namespace:u,widgetName:i,widgetFullName:a}),r?(e.each(r._childConstructors,function(t,i){var s=i.prototype;e.widget(s.namespace+"."+s.widgetName,o,i._proto)}),delete r._childConstructors):s._childConstructors.push(o),e.widget.bridge(i,o)},e.widget.extend=function(i){for(var n,a,r=s.call(arguments,1),o=0,h=r.length;h>o;o++)for(n in r[o])a=r[o][n],r[o].hasOwnProperty(n)&&a!==t&&(i[n]=e.isPlainObject(a)?e.isPlainObject(i[n])?e.widget.extend({},i[n],a):e.widget.extend({},a):a);return i},e.widget.bridge=function(i,n){var a=n.prototype.widgetFullName||i;e.fn[i]=function(r){var o="string"==typeof r,h=s.call(arguments,1),l=this;return r=!o&&h.length?e.widget.extend.apply(null,[r].concat(h)):r,o?this.each(function(){var s,n=e.data(this,a);return n?e.isFunction(n[r])&&"_"!==r.charAt(0)?(s=n[r].apply(n,h),s!==n&&s!==t?(l=s&&s.jquery?l.pushStack(s.get()):s,!1):t):e.error("no such method '"+r+"' for "+i+" widget instance"):e.error("cannot call methods on "+i+" prior to initialization; "+"attempted to call method '"+r+"'")}):this.each(function(){var t=e.data(this,a);t?t.option(r||{})._init():e.data(this,a,new n(r,this))}),l}},e.Widget=function(){},e.Widget._childConstructors=[],e.Widget.prototype={widgetName:"widget",widgetEventPrefix:"",defaultElement:"<div>",options:{disabled:!1,create:null},_createWidget:function(t,s){s=e(s||this.defaultElement||this)[0],this.element=e(s),this.uuid=i++,this.eventNamespace="."+this.widgetName+this.uuid,this.options=e.widget.extend({},this.options,this._getCreateOptions(),t),this.bindings=e(),this.hoverable=e(),this.focusable=e(),s!==this&&(e.data(s,this.widgetFullName,this),this._on(!0,this.element,{remove:function(e){e.target===s&&this.destroy()}}),this.document=e(s.style?s.ownerDocument:s.document||s),this.window=e(this.document[0].defaultView||this.document[0].parentWindow)),this._create(),this._trigger("create",null,this._getCreateEventData()),this._init()},_getCreateOptions:e.noop,_getCreateEventData:e.noop,_create:e.noop,_init:e.noop,destroy:function(){this._destroy(),this.element.unbind(this.eventNamespace).removeData(this.widgetName).removeData(this.widgetFullName).removeData(e.camelCase(this.widgetFullName)),this.widget().unbind(this.eventNamespace).removeAttr("aria-disabled").removeClass(this.widgetFullName+"-disabled "+"ui-state-disabled"),this.bindings.unbind(this.eventNamespace),this.hoverable.removeClass("ui-state-hover"),this.focusable.removeClass("ui-state-focus")},_destroy:e.noop,widget:function(){return this.element},option:function(i,s){var n,a,r,o=i;if(0===arguments.length)return e.widget.extend({},this.options);if("string"==typeof i)if(o={},n=i.split("."),i=n.shift(),n.length){for(a=o[i]=e.widget.extend({},this.options[i]),r=0;n.length-1>r;r++)a[n[r]]=a[n[r]]||{},a=a[n[r]];if(i=n.pop(),s===t)return a[i]===t?null:a[i];a[i]=s}else{if(s===t)return this.options[i]===t?null:this.options[i];o[i]=s}return this._setOptions(o),this},_setOptions:function(e){var t;for(t in e)this._setOption(t,e[t]);return this},_setOption:function(e,t){return this.options[e]=t,"disabled"===e&&(this.widget().toggleClass(this.widgetFullName+"-disabled ui-state-disabled",!!t).attr("aria-disabled",t),this.hoverable.removeClass("ui-state-hover"),this.focusable.removeClass("ui-state-focus")),this},enable:function(){return this._setOption("disabled",!1)},disable:function(){return this._setOption("disabled",!0)},_on:function(i,s,n){var a,r=this;"boolean"!=typeof i&&(n=s,s=i,i=!1),n?(s=a=e(s),this.bindings=this.bindings.add(s)):(n=s,s=this.element,a=this.widget()),e.each(n,function(n,o){function h(){return i||r.options.disabled!==!0&&!e(this).hasClass("ui-state-disabled")?("string"==typeof o?r[o]:o).apply(r,arguments):t}"string"!=typeof o&&(h.guid=o.guid=o.guid||h.guid||e.guid++);var l=n.match(/^(\w+)\s*(.*)$/),u=l[1]+r.eventNamespace,c=l[2];c?a.delegate(c,u,h):s.bind(u,h)})},_off:function(e,t){t=(t||"").split(" ").join(this.eventNamespace+" ")+this.eventNamespace,e.unbind(t).undelegate(t)},_delay:function(e,t){function i(){return("string"==typeof e?s[e]:e).apply(s,arguments)}var s=this;return setTimeout(i,t||0)},_hoverable:function(t){this.hoverable=this.hoverable.add(t),this._on(t,{mouseenter:function(t){e(t.currentTarget).addClass("ui-state-hover")},mouseleave:function(t){e(t.currentTarget).removeClass("ui-state-hover")}})},_focusable:function(t){this.focusable=this.focusable.add(t),this._on(t,{focusin:function(t){e(t.currentTarget).addClass("ui-state-focus")},focusout:function(t){e(t.currentTarget).removeClass("ui-state-focus")}})},_trigger:function(t,i,s){var n,a,r=this.options[t];if(s=s||{},i=e.Event(i),i.type=(t===this.widgetEventPrefix?t:this.widgetEventPrefix+t).toLowerCase(),i.target=this.element[0],a=i.originalEvent)for(n in a)n in i||(i[n]=a[n]);return this.element.trigger(i,s),!(e.isFunction(r)&&r.apply(this.element[0],[i].concat(s))===!1||i.isDefaultPrevented())}},e.each({show:"fadeIn",hide:"fadeOut"},function(t,i){e.Widget.prototype["_"+t]=function(s,n,a){"string"==typeof n&&(n={effect:n});var r,o=n?n===!0||"number"==typeof n?i:n.effect||i:t;n=n||{},"number"==typeof n&&(n={duration:n}),r=!e.isEmptyObject(n),n.complete=a,n.delay&&s.delay(n.delay),r&&e.effects&&e.effects.effect[o]?s[t](n):o!==t&&s[o]?s[o](n.duration,n.easing,a):s.queue(function(i){e(this)[t](),a&&a.call(s[0]),i()})}})})(jQuery);(function(e){var t=!1;e(document).mouseup(function(){t=!1}),e.widget("ui.mouse",{version:"1.10.2",options:{cancel:"input,textarea,button,select,option",distance:1,delay:0},_mouseInit:function(){var t=this;this.element.bind("mousedown."+this.widgetName,function(e){return t._mouseDown(e)}).bind("click."+this.widgetName,function(i){return!0===e.data(i.target,t.widgetName+".preventClickEvent")?(e.removeData(i.target,t.widgetName+".preventClickEvent"),i.stopImmediatePropagation(),!1):undefined}),this.started=!1},_mouseDestroy:function(){this.element.unbind("."+this.widgetName),this._mouseMoveDelegate&&e(document).unbind("mousemove."+this.widgetName,this._mouseMoveDelegate).unbind("mouseup."+this.widgetName,this._mouseUpDelegate)},_mouseDown:function(i){if(!t){this._mouseStarted&&this._mouseUp(i),this._mouseDownEvent=i;var s=this,n=1===i.which,a="string"==typeof this.options.cancel&&i.target.nodeName?e(i.target).closest(this.options.cancel).length:!1;return n&&!a&&this._mouseCapture(i)?(this.mouseDelayMet=!this.options.delay,this.mouseDelayMet||(this._mouseDelayTimer=setTimeout(function(){s.mouseDelayMet=!0},this.options.delay)),this._mouseDistanceMet(i)&&this._mouseDelayMet(i)&&(this._mouseStarted=this._mouseStart(i)!==!1,!this._mouseStarted)?(i.preventDefault(),!0):(!0===e.data(i.target,this.widgetName+".preventClickEvent")&&e.removeData(i.target,this.widgetName+".preventClickEvent"),this._mouseMoveDelegate=function(e){return s._mouseMove(e)},this._mouseUpDelegate=function(e){return s._mouseUp(e)},e(document).bind("mousemove."+this.widgetName,this._mouseMoveDelegate).bind("mouseup."+this.widgetName,this._mouseUpDelegate),i.preventDefault(),t=!0,!0)):!0}},_mouseMove:function(t){return e.ui.ie&&(!document.documentMode||9>document.documentMode)&&!t.button?this._mouseUp(t):this._mouseStarted?(this._mouseDrag(t),t.preventDefault()):(this._mouseDistanceMet(t)&&this._mouseDelayMet(t)&&(this._mouseStarted=this._mouseStart(this._mouseDownEvent,t)!==!1,this._mouseStarted?this._mouseDrag(t):this._mouseUp(t)),!this._mouseStarted)},_mouseUp:function(t){return e(document).unbind("mousemove."+this.widgetName,this._mouseMoveDelegate).unbind("mouseup."+this.widgetName,this._mouseUpDelegate),this._mouseStarted&&(this._mouseStarted=!1,t.target===this._mouseDownEvent.target&&e.data(t.target,this.widgetName+".preventClickEvent",!0),this._mouseStop(t)),!1},_mouseDistanceMet:function(e){return Math.max(Math.abs(this._mouseDownEvent.pageX-e.pageX),Math.abs(this._mouseDownEvent.pageY-e.pageY))>=this.options.distance},_mouseDelayMet:function(){return this.mouseDelayMet},_mouseStart:function(){},_mouseDrag:function(){},_mouseStop:function(){},_mouseCapture:function(){return!0}})})(jQuery);(function(e){function t(e){return parseInt(e,10)||0}function i(e){return!isNaN(parseInt(e,10))}e.widget("ui.resizable",e.ui.mouse,{version:"1.10.2",widgetEventPrefix:"resize",options:{alsoResize:!1,animate:!1,animateDuration:"slow",animateEasing:"swing",aspectRatio:!1,autoHide:!1,containment:!1,ghost:!1,grid:!1,handles:"e,s,se",helper:!1,maxHeight:null,maxWidth:null,minHeight:10,minWidth:10,zIndex:90,resize:null,start:null,stop:null},_create:function(){var t,i,s,n,a,o=this,r=this.options;if(this.element.addClass("ui-resizable"),e.extend(this,{_aspectRatio:!!r.aspectRatio,aspectRatio:r.aspectRatio,originalElement:this.element,_proportionallyResizeElements:[],_helper:r.helper||r.ghost||r.animate?r.helper||"ui-resizable-helper":null}),this.element[0].nodeName.match(/canvas|textarea|input|select|button|img/i)&&(this.element.wrap(e("<div class='ui-wrapper' style='overflow: hidden;'></div>").css({position:this.element.css("position"),width:this.element.outerWidth(),height:this.element.outerHeight(),top:this.element.css("top"),left:this.element.css("left")})),this.element=this.element.parent().data("ui-resizable",this.element.data("ui-resizable")),this.elementIsWrapper=!0,this.element.css({marginLeft:this.originalElement.css("marginLeft"),marginTop:this.originalElement.css("marginTop"),marginRight:this.originalElement.css("marginRight"),marginBottom:this.originalElement.css("marginBottom")}),this.originalElement.css({marginLeft:0,marginTop:0,marginRight:0,marginBottom:0}),this.originalResizeStyle=this.originalElement.css("resize"),this.originalElement.css("resize","none"),this._proportionallyResizeElements.push(this.originalElement.css({position:"static",zoom:1,display:"block"})),this.originalElement.css({margin:this.originalElement.css("margin")}),this._proportionallyResize()),this.handles=r.handles||(e(".ui-resizable-handle",this.element).length?{n:".ui-resizable-n",e:".ui-resizable-e",s:".ui-resizable-s",w:".ui-resizable-w",se:".ui-resizable-se",sw:".ui-resizable-sw",ne:".ui-resizable-ne",nw:".ui-resizable-nw"}:"e,s,se"),this.handles.constructor===String)for("all"===this.handles&&(this.handles="n,e,s,w,se,sw,ne,nw"),t=this.handles.split(","),this.handles={},i=0;t.length>i;i++)s=e.trim(t[i]),a="ui-resizable-"+s,n=e("<div class='ui-resizable-handle "+a+"'></div>"),n.css({zIndex:r.zIndex}),"se"===s&&n.addClass("ui-icon ui-icon-gripsmall-diagonal-se"),this.handles[s]=".ui-resizable-"+s,this.element.append(n);this._renderAxis=function(t){var i,s,n,a;t=t||this.element;for(i in this.handles)this.handles[i].constructor===String&&(this.handles[i]=e(this.handles[i],this.element).show()),this.elementIsWrapper&&this.originalElement[0].nodeName.match(/textarea|input|select|button/i)&&(s=e(this.handles[i],this.element),a=/sw|ne|nw|se|n|s/.test(i)?s.outerHeight():s.outerWidth(),n=["padding",/ne|nw|n/.test(i)?"Top":/se|sw|s/.test(i)?"Bottom":/^e$/.test(i)?"Right":"Left"].join(""),t.css(n,a),this._proportionallyResize()),e(this.handles[i]).length},this._renderAxis(this.element),this._handles=e(".ui-resizable-handle",this.element).disableSelection(),this._handles.mouseover(function(){o.resizing||(this.className&&(n=this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i)),o.axis=n&&n[1]?n[1]:"se")}),r.autoHide&&(this._handles.hide(),e(this.element).addClass("ui-resizable-autohide").mouseenter(function(){r.disabled||(e(this).removeClass("ui-resizable-autohide"),o._handles.show())}).mouseleave(function(){r.disabled||o.resizing||(e(this).addClass("ui-resizable-autohide"),o._handles.hide())})),this._mouseInit()},_destroy:function(){this._mouseDestroy();var t,i=function(t){e(t).removeClass("ui-resizable ui-resizable-disabled ui-resizable-resizing").removeData("resizable").removeData("ui-resizable").unbind(".resizable").find(".ui-resizable-handle").remove()};return this.elementIsWrapper&&(i(this.element),t=this.element,this.originalElement.css({position:t.css("position"),width:t.outerWidth(),height:t.outerHeight(),top:t.css("top"),left:t.css("left")}).insertAfter(t),t.remove()),this.originalElement.css("resize",this.originalResizeStyle),i(this.originalElement),this},_mouseCapture:function(t){var i,s,n=!1;for(i in this.handles)s=e(this.handles[i])[0],(s===t.target||e.contains(s,t.target))&&(n=!0);return!this.options.disabled&&n},_mouseStart:function(i){var s,n,a,o=this.options,r=this.element.position(),h=this.element;return this.resizing=!0,/absolute/.test(h.css("position"))?h.css({position:"absolute",top:h.css("top"),left:h.css("left")}):h.is(".ui-draggable")&&h.css({position:"absolute",top:r.top,left:r.left}),this._renderProxy(),s=t(this.helper.css("left")),n=t(this.helper.css("top")),o.containment&&(s+=e(o.containment).scrollLeft()||0,n+=e(o.containment).scrollTop()||0),this.offset=this.helper.offset(),this.position={left:s,top:n},this.size=this._helper?{width:h.outerWidth(),height:h.outerHeight()}:{width:h.width(),height:h.height()},this.originalSize=this._helper?{width:h.outerWidth(),height:h.outerHeight()}:{width:h.width(),height:h.height()},this.originalPosition={left:s,top:n},this.sizeDiff={width:h.outerWidth()-h.width(),height:h.outerHeight()-h.height()},this.originalMousePosition={left:i.pageX,top:i.pageY},this.aspectRatio="number"==typeof o.aspectRatio?o.aspectRatio:this.originalSize.width/this.originalSize.height||1,a=e(".ui-resizable-"+this.axis).css("cursor"),e("body").css("cursor","auto"===a?this.axis+"-resize":a),h.addClass("ui-resizable-resizing"),this._propagate("start",i),!0},_mouseDrag:function(t){var i,s=this.helper,n={},a=this.originalMousePosition,o=this.axis,r=this.position.top,h=this.position.left,l=this.size.width,u=this.size.height,c=t.pageX-a.left||0,d=t.pageY-a.top||0,p=this._change[o];return p?(i=p.apply(this,[t,c,d]),this._updateVirtualBoundaries(t.shiftKey),(this._aspectRatio||t.shiftKey)&&(i=this._updateRatio(i,t)),i=this._respectSize(i,t),this._updateCache(i),this._propagate("resize",t),this.position.top!==r&&(n.top=this.position.top+"px"),this.position.left!==h&&(n.left=this.position.left+"px"),this.size.width!==l&&(n.width=this.size.width+"px"),this.size.height!==u&&(n.height=this.size.height+"px"),s.css(n),!this._helper&&this._proportionallyResizeElements.length&&this._proportionallyResize(),e.isEmptyObject(n)||this._trigger("resize",t,this.ui()),!1):!1},_mouseStop:function(t){this.resizing=!1;var i,s,n,a,o,r,h,l=this.options,u=this;return this._helper&&(i=this._proportionallyResizeElements,s=i.length&&/textarea/i.test(i[0].nodeName),n=s&&e.ui.hasScroll(i[0],"left")?0:u.sizeDiff.height,a=s?0:u.sizeDiff.width,o={width:u.helper.width()-a,height:u.helper.height()-n},r=parseInt(u.element.css("left"),10)+(u.position.left-u.originalPosition.left)||null,h=parseInt(u.element.css("top"),10)+(u.position.top-u.originalPosition.top)||null,l.animate||this.element.css(e.extend(o,{top:h,left:r})),u.helper.height(u.size.height),u.helper.width(u.size.width),this._helper&&!l.animate&&this._proportionallyResize()),e("body").css("cursor","auto"),this.element.removeClass("ui-resizable-resizing"),this._propagate("stop",t),this._helper&&this.helper.remove(),!1},_updateVirtualBoundaries:function(e){var t,s,n,a,o,r=this.options;o={minWidth:i(r.minWidth)?r.minWidth:0,maxWidth:i(r.maxWidth)?r.maxWidth:1/0,minHeight:i(r.minHeight)?r.minHeight:0,maxHeight:i(r.maxHeight)?r.maxHeight:1/0},(this._aspectRatio||e)&&(t=o.minHeight*this.aspectRatio,n=o.minWidth/this.aspectRatio,s=o.maxHeight*this.aspectRatio,a=o.maxWidth/this.aspectRatio,t>o.minWidth&&(o.minWidth=t),n>o.minHeight&&(o.minHeight=n),o.maxWidth>s&&(o.maxWidth=s),o.maxHeight>a&&(o.maxHeight=a)),this._vBoundaries=o},_updateCache:function(e){this.offset=this.helper.offset(),i(e.left)&&(this.position.left=e.left),i(e.top)&&(this.position.top=e.top),i(e.height)&&(this.size.height=e.height),i(e.width)&&(this.size.width=e.width)},_updateRatio:function(e){var t=this.position,s=this.size,n=this.axis;return i(e.height)?e.width=e.height*this.aspectRatio:i(e.width)&&(e.height=e.width/this.aspectRatio),"sw"===n&&(e.left=t.left+(s.width-e.width),e.top=null),"nw"===n&&(e.top=t.top+(s.height-e.height),e.left=t.left+(s.width-e.width)),e},_respectSize:function(e){var t=this._vBoundaries,s=this.axis,n=i(e.width)&&t.maxWidth&&t.maxWidth<e.width,a=i(e.height)&&t.maxHeight&&t.maxHeight<e.height,o=i(e.width)&&t.minWidth&&t.minWidth>e.width,r=i(e.height)&&t.minHeight&&t.minHeight>e.height,h=this.originalPosition.left+this.originalSize.width,l=this.position.top+this.size.height,u=/sw|nw|w/.test(s),c=/nw|ne|n/.test(s);return o&&(e.width=t.minWidth),r&&(e.height=t.minHeight),n&&(e.width=t.maxWidth),a&&(e.height=t.maxHeight),o&&u&&(e.left=h-t.minWidth),n&&u&&(e.left=h-t.maxWidth),r&&c&&(e.top=l-t.minHeight),a&&c&&(e.top=l-t.maxHeight),e.width||e.height||e.left||!e.top?e.width||e.height||e.top||!e.left||(e.left=null):e.top=null,e},_proportionallyResize:function(){if(this._proportionallyResizeElements.length){var e,t,i,s,n,a=this.helper||this.element;for(e=0;this._proportionallyResizeElements.length>e;e++){if(n=this._proportionallyResizeElements[e],!this.borderDif)for(this.borderDif=[],i=[n.css("borderTopWidth"),n.css("borderRightWidth"),n.css("borderBottomWidth"),n.css("borderLeftWidth")],s=[n.css("paddingTop"),n.css("paddingRight"),n.css("paddingBottom"),n.css("paddingLeft")],t=0;i.length>t;t++)this.borderDif[t]=(parseInt(i[t],10)||0)+(parseInt(s[t],10)||0);n.css({height:a.height()-this.borderDif[0]-this.borderDif[2]||0,width:a.width()-this.borderDif[1]-this.borderDif[3]||0})}}},_renderProxy:function(){var t=this.element,i=this.options;this.elementOffset=t.offset(),this._helper?(this.helper=this.helper||e("<div style='overflow:hidden;'></div>"),this.helper.addClass(this._helper).css({width:this.element.outerWidth()-1,height:this.element.outerHeight()-1,position:"absolute",left:this.elementOffset.left+"px",top:this.elementOffset.top+"px",zIndex:++i.zIndex}),this.helper.appendTo("body").disableSelection()):this.helper=this.element},_change:{e:function(e,t){return{width:this.originalSize.width+t}},w:function(e,t){var i=this.originalSize,s=this.originalPosition;return{left:s.left+t,width:i.width-t}},n:function(e,t,i){var s=this.originalSize,n=this.originalPosition;return{top:n.top+i,height:s.height-i}},s:function(e,t,i){return{height:this.originalSize.height+i}},se:function(t,i,s){return e.extend(this._change.s.apply(this,arguments),this._change.e.apply(this,[t,i,s]))},sw:function(t,i,s){return e.extend(this._change.s.apply(this,arguments),this._change.w.apply(this,[t,i,s]))},ne:function(t,i,s){return e.extend(this._change.n.apply(this,arguments),this._change.e.apply(this,[t,i,s]))},nw:function(t,i,s){return e.extend(this._change.n.apply(this,arguments),this._change.w.apply(this,[t,i,s]))}},_propagate:function(t,i){e.ui.plugin.call(this,t,[i,this.ui()]),"resize"!==t&&this._trigger(t,i,this.ui())},plugins:{},ui:function(){return{originalElement:this.originalElement,element:this.element,helper:this.helper,position:this.position,size:this.size,originalSize:this.originalSize,originalPosition:this.originalPosition}}}),e.ui.plugin.add("resizable","animate",{stop:function(t){var i=e(this).data("ui-resizable"),s=i.options,n=i._proportionallyResizeElements,a=n.length&&/textarea/i.test(n[0].nodeName),o=a&&e.ui.hasScroll(n[0],"left")?0:i.sizeDiff.height,r=a?0:i.sizeDiff.width,h={width:i.size.width-r,height:i.size.height-o},l=parseInt(i.element.css("left"),10)+(i.position.left-i.originalPosition.left)||null,u=parseInt(i.element.css("top"),10)+(i.position.top-i.originalPosition.top)||null;i.element.animate(e.extend(h,u&&l?{top:u,left:l}:{}),{duration:s.animateDuration,easing:s.animateEasing,step:function(){var s={width:parseInt(i.element.css("width"),10),height:parseInt(i.element.css("height"),10),top:parseInt(i.element.css("top"),10),left:parseInt(i.element.css("left"),10)};n&&n.length&&e(n[0]).css({width:s.width,height:s.height}),i._updateCache(s),i._propagate("resize",t)}})}}),e.ui.plugin.add("resizable","containment",{start:function(){var i,s,n,a,o,r,h,l=e(this).data("ui-resizable"),u=l.options,c=l.element,d=u.containment,p=d instanceof e?d.get(0):/parent/.test(d)?c.parent().get(0):d;p&&(l.containerElement=e(p),/document/.test(d)||d===document?(l.containerOffset={left:0,top:0},l.containerPosition={left:0,top:0},l.parentData={element:e(document),left:0,top:0,width:e(document).width(),height:e(document).height()||document.body.parentNode.scrollHeight}):(i=e(p),s=[],e(["Top","Right","Left","Bottom"]).each(function(e,n){s[e]=t(i.css("padding"+n))}),l.containerOffset=i.offset(),l.containerPosition=i.position(),l.containerSize={height:i.innerHeight()-s[3],width:i.innerWidth()-s[1]},n=l.containerOffset,a=l.containerSize.height,o=l.containerSize.width,r=e.ui.hasScroll(p,"left")?p.scrollWidth:o,h=e.ui.hasScroll(p)?p.scrollHeight:a,l.parentData={element:p,left:n.left,top:n.top,width:r,height:h}))},resize:function(t){var i,s,n,a,o=e(this).data("ui-resizable"),r=o.options,h=o.containerOffset,l=o.position,u=o._aspectRatio||t.shiftKey,c={top:0,left:0},d=o.containerElement;d[0]!==document&&/static/.test(d.css("position"))&&(c=h),l.left<(o._helper?h.left:0)&&(o.size.width=o.size.width+(o._helper?o.position.left-h.left:o.position.left-c.left),u&&(o.size.height=o.size.width/o.aspectRatio),o.position.left=r.helper?h.left:0),l.top<(o._helper?h.top:0)&&(o.size.height=o.size.height+(o._helper?o.position.top-h.top:o.position.top),u&&(o.size.width=o.size.height*o.aspectRatio),o.position.top=o._helper?h.top:0),o.offset.left=o.parentData.left+o.position.left,o.offset.top=o.parentData.top+o.position.top,i=Math.abs((o._helper?o.offset.left-c.left:o.offset.left-c.left)+o.sizeDiff.width),s=Math.abs((o._helper?o.offset.top-c.top:o.offset.top-h.top)+o.sizeDiff.height),n=o.containerElement.get(0)===o.element.parent().get(0),a=/relative|absolute/.test(o.containerElement.css("position")),n&&a&&(i-=o.parentData.left),i+o.size.width>=o.parentData.width&&(o.size.width=o.parentData.width-i,u&&(o.size.height=o.size.width/o.aspectRatio)),s+o.size.height>=o.parentData.height&&(o.size.height=o.parentData.height-s,u&&(o.size.width=o.size.height*o.aspectRatio))},stop:function(){var t=e(this).data("ui-resizable"),i=t.options,s=t.containerOffset,n=t.containerPosition,a=t.containerElement,o=e(t.helper),r=o.offset(),h=o.outerWidth()-t.sizeDiff.width,l=o.outerHeight()-t.sizeDiff.height;t._helper&&!i.animate&&/relative/.test(a.css("position"))&&e(this).css({left:r.left-n.left-s.left,width:h,height:l}),t._helper&&!i.animate&&/static/.test(a.css("position"))&&e(this).css({left:r.left-n.left-s.left,width:h,height:l})}}),e.ui.plugin.add("resizable","alsoResize",{start:function(){var t=e(this).data("ui-resizable"),i=t.options,s=function(t){e(t).each(function(){var t=e(this);t.data("ui-resizable-alsoresize",{width:parseInt(t.width(),10),height:parseInt(t.height(),10),left:parseInt(t.css("left"),10),top:parseInt(t.css("top"),10)})})};"object"!=typeof i.alsoResize||i.alsoResize.parentNode?s(i.alsoResize):i.alsoResize.length?(i.alsoResize=i.alsoResize[0],s(i.alsoResize)):e.each(i.alsoResize,function(e){s(e)})},resize:function(t,i){var s=e(this).data("ui-resizable"),n=s.options,a=s.originalSize,o=s.originalPosition,r={height:s.size.height-a.height||0,width:s.size.width-a.width||0,top:s.position.top-o.top||0,left:s.position.left-o.left||0},h=function(t,s){e(t).each(function(){var t=e(this),n=e(this).data("ui-resizable-alsoresize"),a={},o=s&&s.length?s:t.parents(i.originalElement[0]).length?["width","height"]:["width","height","top","left"];e.each(o,function(e,t){var i=(n[t]||0)+(r[t]||0);i&&i>=0&&(a[t]=i||null)}),t.css(a)})};"object"!=typeof n.alsoResize||n.alsoResize.nodeType?h(n.alsoResize):e.each(n.alsoResize,function(e,t){h(e,t)})},stop:function(){e(this).removeData("resizable-alsoresize")}}),e.ui.plugin.add("resizable","ghost",{start:function(){var t=e(this).data("ui-resizable"),i=t.options,s=t.size;t.ghost=t.originalElement.clone(),t.ghost.css({opacity:.25,display:"block",position:"relative",height:s.height,width:s.width,margin:0,left:0,top:0}).addClass("ui-resizable-ghost").addClass("string"==typeof i.ghost?i.ghost:""),t.ghost.appendTo(t.helper)},resize:function(){var t=e(this).data("ui-resizable");t.ghost&&t.ghost.css({position:"relative",height:t.size.height,width:t.size.width})},stop:function(){var t=e(this).data("ui-resizable");t.ghost&&t.helper&&t.helper.get(0).removeChild(t.ghost.get(0))}}),e.ui.plugin.add("resizable","grid",{resize:function(){var t=e(this).data("ui-resizable"),i=t.options,s=t.size,n=t.originalSize,a=t.originalPosition,o=t.axis,r="number"==typeof i.grid?[i.grid,i.grid]:i.grid,h=r[0]||1,l=r[1]||1,u=Math.round((s.width-n.width)/h)*h,c=Math.round((s.height-n.height)/l)*l,d=n.width+u,p=n.height+c,f=i.maxWidth&&d>i.maxWidth,m=i.maxHeight&&p>i.maxHeight,g=i.minWidth&&i.minWidth>d,v=i.minHeight&&i.minHeight>p;i.grid=r,g&&(d+=h),v&&(p+=l),f&&(d-=h),m&&(p-=l),/^(se|s|e)$/.test(o)?(t.size.width=d,t.size.height=p):/^(ne)$/.test(o)?(t.size.width=d,t.size.height=p,t.position.top=a.top-c):/^(sw)$/.test(o)?(t.size.width=d,t.size.height=p,t.position.left=a.left-u):(t.size.width=d,t.size.height=p,t.position.top=a.top-c,t.position.left=a.left-u)}})})(jQuery);
\ No newline at end of file
diff --git a/present/js/play.js b/present/js/play.js
index 42662f3..c815ae1 100644
--- a/present/js/play.js
+++ b/present/js/play.js
@@ -35,6 +35,14 @@
     var outpre = document.createElement('pre');
     var stopFunc;
 
+    $(output).resizable({
+      handles: "n,w,nw",
+      minHeight:  27,
+      minWidth:  135,
+      maxHeight: 608,
+      maxWidth:  990
+    });
+
     function onKill() {
       if (stopFunc) {
         stopFunc();
diff --git a/present/play.go b/present/play.go
index fcd361d..f7a8a3e 100644
--- a/present/play.go
+++ b/present/play.go
@@ -17,7 +17,7 @@
 func playScript(root string, path ...string) {
 	modTime := time.Now()
 	var buf bytes.Buffer
-	for _, p := range append(path, "play.js") {
+	for _, p := range append(path, "jquery.js", "jquery-ui.js", "play.js") {
 		b, err := ioutil.ReadFile(filepath.Join(root, "js", p))
 		if err != nil {
 			panic(err)
diff --git a/present/static/styles.css b/present/static/styles.css
index f70ba08..70d321e 100644
--- a/present/static/styles.css
+++ b/present/static/styles.css
@@ -12,7 +12,7 @@
 
   height: 100%;
   min-height: 740px;
-  
+
   overflow-x: hidden;
   overflow-y: auto;
 
@@ -30,7 +30,7 @@
   height: 100%;
   left: 0;
   top: 0;
-  
+
   position: absolute;
 
   -webkit-transform: translate3d(0, 0, 0);
@@ -50,7 +50,7 @@
 
   margin-left: -450px;
   margin-top: -350px;
-  
+
   padding: 40px 60px;
 
   box-sizing: border-box;
@@ -79,7 +79,7 @@
 .slides.layout-faux-widescreen > article {
   margin-left: -550px;
   width: 1100px;
-  
+
   padding: 40px 160px;
 }
 
@@ -97,14 +97,14 @@
   left: 0;
   top: 0;
   width: 150px;
-  height: 700px;  
+  height: 700px;
 
   left: 50%;
   top: 50%;
 
-  cursor: pointer;  
-  margin-top: -350px;  
-  
+  cursor: pointer;
+  margin-top: -350px;
+
   tap-highlight-color: transparent;
   -o-tap-highlight-color: transparent;
   -moz-tap-highlight-color: transparent;
@@ -425,3 +425,29 @@
 	font-size: 28px;
 	line-height: 1.2em;
 }
+
+/* Output resize details */
+.ui-resizable-handle {
+  position: absolute;
+}
+.ui-resizable-n {
+  cursor: n-resize;
+  height: 7px;
+  width: 100%;
+  top: -5px;
+  left: 0;
+}
+.ui-resizable-w {
+  cursor: w-resize;
+  width: 7px;
+  left: -5px;
+  top: 0;
+  height: 100%;
+}
+.ui-resizable-nw {
+  cursor: nw-resize;
+  width: 9px;
+  height: 9px;
+  left: -5px;
+  top: -5px;
+}