Blogger Book

jScrollPane è uno script jQuery che permette di modificare la barra di scorrimento del blog , ovvero quella del browser .
Sebbene sia possibile modificarla tramite CSS, il problema è che non esiste uno standard, quindi con il CSS possiamo farla funzionare solo in Chrome e Safari; nel caso di Internet Explorer, esiste un codice specifico, ma ovviamente funziona solo in quel browser (non so quali versioni). Quindi, quello che faremo ora è dare alla barra di scorrimento un nuovo aspetto utilizzando jQuery, in modo che la modifica sia visibile in tutti i browser. Puoi vedere un esempio in questo blog di prova ; noterai che la barra di scorrimento ha una forma e un colore diversi. Per modificare la barra di scorrimento del tuo blog, vai prima su Template | Modifica HTML e incolla questo codice prima di </head> :

<script src='//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js' type='text/javascript'/>
<style>
.jspContainer {overflow: hidden;position: relative;}.jspPane {position: absolute;}
.jspVerticalBar {position: absolute;top: 0;right: 0;width: 16px;height: 100%;background: #ccc;} .jspHorizontalBar {position: absolute;bottom: 0;left: 0;width: 100%;height: 16px;background: #ccc;} .jspVerticalBar *,.jspHorizontalBar * {margin: 0;padding: 0;} .jspCap {display: none;}.jspHorizontalBar .jspCap {float: sinistra;} .jspTrack { background: #dde; /* Colore di sfondo della barra */ position: relative; } .jspDrag { background: #bbd; /* Colore del pulsante di spostamento */ position: relative; top: 0; left: 0; cursor: pointer; } .jspHorizontalBar .jspTrack, .jspHorizontalBar .jspDrag { float: left; height: 100%; } .jspArrow { background: #50506d; /* Colore dei limiti */ text-indent: -20000px; display: block; cursor: pointer; } .jspArrow.jspDisabled { cursor: default; background: #80808d; /*Colore dei limiti quando il pulsante li raggiunge*/ } .jspVerticalBar .jspArrow { altezza: 16px; } .jspHorizontalBar .jspArrow { larghezza: 16px; float: sinistra; altezza: 100%; } .jspVerticalBar .jspArrow:focus {outline: nessuno;}.jspCorner {sfondo: #eeeef4;float: sinistra;altezza: 100%;}* html .jspCorner {margine: 0 -3px 0 0;} html, body { altezza: 100%; margine: 0; padding: 0; } #blog-container { altezza: 100%; margine: 0; padding: 0; overflow: auto; } </style> <script>

//<![CDATA[
/*! Copyright (c) 2013 Brandon Aaron (http://brandonaaron.net)
* Concesso in licenza secondo la licenza MIT (LICENSE.txt).
* Versione: 3.1.3
*/
(function (factory) {
if ( typeof define === 'function' && define.amd ) {
define(['jquery'], factory);
} else if (typeof exports === 'object') {
module.exports = factory;
} else {
// Globali del browser
factory(jQuery);
}
}(function ($) {
var toFix = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'];
var toBind = 'onwheel' in document || document.documentMode >= 9 ? ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'];
var lowestDelta, lowestDeltaXY;
if ( $.event.fixHooks ) {
for ( var i = toFix.length; i; ) {
$.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks;
}
}
$.event.special.mousewheel = {
setup: function() {
if ( this.addEventListener ) {
for ( var i = toBind.length; i; ) {
this.addEventListener( toBind[--i], handler, false );
}
} else {
this.onmousewheel = handler;
}
},
teardown: function() {
if ( this.removeEventListener ) {
for ( var i = toBind.length; i; ) {
this.removeEventListener( toBind[--i], handler, false );
}
} else {
this.onmousewheel = null;
}
}
};
$.fn.extend({
mousewheel: function(fn) {
return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
},
unmousewheel: function(fn) {
return this.unbind("mousewheel", fn);
}
});
function handler(event) {
var orgEvent = event || window.event,
args = [].slice.call(arguments, 1),
delta = 0,
deltaX = 0,
deltaY = 0,
absDelta = 0,
absDeltaXY = 0,
fn;
event = $.event.fix(orgEvent);
event.type = "mousewheel";
if ( orgEvent.wheelDelta ) { delta = orgEvent.wheelDelta; }
if ( orgEvent.detail ) { delta = orgEvent.detail * -1; }
if ( orgEvent.deltaY ) {
deltaY = orgEvent.deltaY * -1;
delta = deltaY;
}
if ( orgEvent.deltaX ) {
deltaX = orgEvent.deltaX;
delta = deltaX * -1;
}
if ( orgEvent.wheelDeltaY !== undefined ) { deltaY = orgEvent.wheelDeltaY; }
if ( orgEvent.wheelDeltaX !== undefined ) { deltaX = orgEvent.wheelDeltaX * -1; }
absDelta = Math.abs(delta);
if ( !lowestDelta || absDelta < lowestDelta ) { lowestDelta = absDelta; }
absDeltaXY = Math.max(Math.abs(deltaY), Math.abs(deltaX)); if ( !lowestDeltaXY || absDeltaXY < lowestDeltaXY ) { lowestDeltaXY = absDeltaXY; } fn = delta > 0 ? 'floor' : 'ceil'; delta = Math[fn](delta / lowestDelta); deltaX = Math[fn](deltaX / lowestDeltaXY); deltaY = Math[fn](deltaY / lowestDeltaXY); args.unshift(event, delta, deltaX, deltaY); return ($.event.dispatch || $.event.handle).apply(this, args); } })); /* * jScrollPane - v2.0.0beta5 - 2010-09-18 * http://jscrollpane.kelvinluck.com/ * Copyright (c) 2010 Kelvin Luck * Doppia licenza con le licenze MIT e GPL. */

(function(b,a,c){ b.fn.jScrollPane=function(f){function d(C,L){var au,N=this,V,ah,v,aj,Q,W,y,q,av,aB,ap,i,H,h,j,X,R,al,U,t,A,Am,ac,ac,F,l,ao,at,x,q,aE,g,aA,ag=true,M=t rue,aD=false,k=false,Z=b.fn.mwheelIntent?"mwheelIntent.jsp":"mousewheel.jsp";aE=C.css("paddingTop")+" "+C.css("paddingRight")+" "+C.css("paddingBottom")+" "+C.css("paddingLeft");g=(parseInt(C.css("paddingLeft"))||0)+(parseInt(C.css("paddingLeft"))||0)+(parseInt(C.css("paddingLeft")); aL,aK,aJ,aG,aF,aI;au=aH;if(V==c){C.css({overflow:"hidden",padding:0});ah=C.innerWidth()+g;v=C.innerHeight();C.width(ah);V=b('<b'sp).Pawdiv class="j; class="jspContainer" />').css({width:ah+"px",height:v+"px"}));C.wrapInner(V.parent());aj=C.find(">.jspContainer");V=aj.find(">.jspPane");V.css("padding",aE)}else{C.c. ss("width",null);aI=C.outerWidth()+g!=ah||C.outerHeight()!=v;if(aI){ah=C.innerWidth()+g;v=C.innerHeight();aj.css({width:ah+"px",height:}+}"px" A=V.innerWidth();if(!aI&&V.outerWidth()==Q&&V.outerHeight()==W){if(aB||av){V.css("width",aA+"px");C.css("width",(aA+g)+"cs(px")V.}re ",null);C.css("width",(ah)+"px");aj.find(">.jspVerticalBar,>.jspHorizontalBar").remove().end()}aL=V.clone().css("position","absolute");aK=b('<div style="width:1px; position: relative;" />').append(aL);b("body").append(aK);Q=Math.max(V.outerWidth(),aL.outerWidth());a. K.remove();W=V.outerHeight();y=Q/ah;q=W/v;av=q>1;aB=y>1;if(!(aB||av)){C.removeClass("jspScrollable");V.css({top:0,width:aj.width()-g});n();D();O();w();af()}else{C.addClass("jspScrollable");aJ=au.maintainPosition&&(H|)Xa);{aF=aay(a)); aC();z();E();if(aJ){K(aG);J(aF)}I();ad();if(au.enableKeyboardNavigation){P()}if(au.clickOnTrack){p()}B();if(au.hijackInternalLinks){m(&)&}}if(au.auto. aq){aq=setInterval(function(){an(au)},au.autoReinitialiseDelay)}else{if(!au.autoReinitialise&&aq){clearInterval(aq)}}C.trigger("jsp-initialised",[aB||av])}function aC(){if(av){aj.append(b('<div class="jspVerticalBar" />').append(b('<div class="jspCap jspCapTop" />'),b('<div class="jspTrack" />').append(b(<"/jsp'ra). class="jspDragTop" />'),b('<div class="jspDragBottom" />'))),b('<div class="jspCap jspCapBottom" />')));R=aj.find(">.jspVerticalBar");al=R.find(">.jspTrack");ap=al.find(">.jspDrag");if(au.showArrows){am=b('<a class="jspArrow jspArrowUp" />').bind("mousedown.jsp",az(0,-1)).bind("click.jsp",ax);ac=b('<a class="jspArrow jspArrowDown" />').bind("mousedown.jsp",az(0,1)).bind("click.jsp",ax);if(au.arrowScrollOnHover){am.bind("mouseover.jsp",az(0,-1,am));ac.bind("mouseover.jsp",az(0,1,ac))}ai(al,au.verticalArrowPositions,am,ac)}t=v;aj.find(">.jspVerticalBar>.jspCap:visible,>.jspVerticalBar>.jspArrow").each(function(){t-=b(this).outerHeight()});ap.hover(function(){ap.addClass("jspHover")},function(){ap.removeClass("jspHover")}).bind("mousedown.jsp",function(aF){b("html").bind("dragstart.jsp selectstart.jsp",function(){return false});ap.addClass("jspActive");var s=aF.pageY-ap.position().top;b("html").bind("mousemove.jsp",function(aG){S(aG.pageY-s,false)}).bind("mouseup.jsp mouseleave.jsp",ar);return false});o()}}function o(){al.height(t+"px");H=0;U=au.verticalGutter+al.outerWidth();V.width(ah-Ug);if(R.position().left==0){V.css("margin-left",U+"px")}}function z(){if(aB){aj.append(b('<div class="jspHorizontalBar" />').append(b('<div class="jspCap jspCapLeft" />'),b('<div class="jspTrack" />').append(b('<div class="jspDrag" />').append(b('<div class="jspDragLeft" />'),b('<div class="jspDragRight" />'))),b('<div class="jspCap jspCapRight" />')));ak=aj.find(">.jspHorizontalBar");F=ak.find(">.jspTrack");h=F.find(">.jspDrag");if(au.showArrows){at=b('<a class="jspArrow jspArrowLeft" />').bind("mousedown.jsp",az(-1,0)).bind("click.jsp",ax);x=b('<a class="jspArrow jspArrowRight" />').bind("mousedown.jsp",az(1,0)).bind("click.jsp",ax);bind("mousemove.jsp",function(aG){S(aG.pageY-s,false)}).bind("mouseup.jsp mouseleave.jsp",ar);return false});o()}}function o(){al.height(t+"px");H=0;U=au.verticalGutter+al.outerWidth();V.width(ah-Ug);if(R.position().left==0){V.css("margin-left",U+"px")}}function z(){if(aB){aj.append(b('<div class="jspHorizontalBar" />').append(b('<div class="jspCap jspCapLeft" />'),b('<div class="jspTrack" />').append(b('<div class="jspDrag" />').append(b('<div class="jspDragLeft" />'),b('<div class="jspDragRight" />'))),b('<div class="jspCap jspCapRight" />')));ak=aj.find(">.jspHorizontalBar");F=ak.find(">.jspTrack");h=F.find(">.jspDrag");if(au.showArrows){at=b('<a class="jspArrow jspArrowLeft" />').bind("mousedown.jsp",az(-1,0)).bind("click.jsp",ax);x=b('<a class="jspArrow jspArrowRight" />').bind("mousedown.jsp",az(1,0)).bind("click.jsp",ax);bind("mousemove.jsp",function(aG){S(aG.pageY-s,false)}).bind("mouseup.jsp mouseleave.jsp",ar);return false});o()}}function o(){al.height(t+"px");H=0;U=au.verticalGutter+al.outerWidth();V.width(ah-Ug);if(R.position().left==0){V.css("margin-left",U+"px")}}function z(){if(aB){aj.append(b('<div class="jspHorizontalBar" />').append(b('<div class="jspCap jspCapLeft" />'),b('<div class="jspTrack" />').append(b('<div class="jspDrag" />').append(b('<div class="jspDragLeft" />'),b('<div class="jspDragRight" />'))),b('<div class="jspCap jspCapRight" />')));ak=aj.find(">.jspHorizontalBar");F=ak.find(">.jspTrack");h=F.find(">.jspDrag");if(au.showArrows){at=b('<a class="jspArrow jspArrowLeft" />').bind("mousedown.jsp",az(-1,0)).bind("click.jsp",ax);x=b('<a class="jspArrow jspArrowRight" />').bind("mousedown.jsp",az(1,0)).bind("click.jsp",ax);
if(au.arrowScrollOnHover){at.bind("mouseover.jsp",az(-1,0,at));x.bind("mouseover.jsp",az(1,0,x))}ai(F,au.horizontalArrowPositions,at,x)}h.hover(function(){h.addClass("jspHover")},function(){h.removeClass("jspHover")}).bind("mousedown.jsp",function(aF){b("html").bind("dragstart.jsp selectstart.jsp",function(){return false});h.addClass("jspActive");var s=aF.pageX-h.position().left;b("html").bind("mousemove.jsp",function(aG){T(aG.pageX-s,false)}).bind("mouseup.jsp mouseleave.jsp",ar);return false});l=aj.innerWidth();ae()}else{}}funzione ae(){aj.find(">.jspHorizontalBar>.jspCap:visible,>.jspHorizontalBar>.jspArrow").each(function(){l-=b(this).outerWidth()});F.width(l+"px");X=0}funzione E(){if(aB&&av){var aF=F.outerHeight(),s=al.outerWidth();t-=aF;b(ak).find(">.jspCap:visible,>.jspArrow").each(function(){l+=b(this).outerWidth()});l-=s;v-=s;ah-=aF;F.parent().append(b('<div class="jspCorner" />').css("width",aF+"px"));o();ae()}if(aB){V.width((aj.outerWidth()-g)+"px")}W=V.outerHeight();q=W/v;if(aB){ao=1/y*l;if(ao>au.horizontalDragMaxWidth){ao=au.horizontalDragMaxWidth}else{if(ao<au.horizontalDragMinWidth){ao=au.hor izontalDragMinWidth}}h.width(ao+"px");j=l-ao;ab(X)}if(av){A=1/q*t;if(A>au.verticalDragMaxHeight){A=au.verticalDragMaxHeight}else{if(A<au.verticalDragMinHeight){A=au.verticalDragMinHeight}}ap.height(A+"px");i=tA;aa(H)}}function ai(aG,aI,aF,s){var aK="prima",aH="dopo",aJ;if(aI=="os"){aI=/Mac/.test(navigator.platform)?"dopo":"spl it"}if(aI==aK){aH=aI}else{if(aI==aH){aK=aI;aJ=aF;aF=s;s=aJ}}aG[aK](aF)[aH](s)}funzione az(aF,s,aG){return function(){G(aF,s,this,aG);this.blur();return false}}funzione G(aH,aF,aK,aJ){aK=b(aK).addClass("jspActive");var aI,s=function(){if(aH!=0){T(X+aH*au.arrowButtonSpeed,false)}if(aF!=0){S(H+aF*au.arrowButtonSpeed,false)}},aG=setInterval(s,au.arrowRepeatFreq);s();aI=aJ==c?"mouseup.jsp":"mouseout.jsp";aJ=aJ||b("html");aJ.bind(aI,function(){aK.removeClass("jspActive");clearInterval(aG);aJ.unbind(aI)})}function p(){w();if(av){al.bind("mousedown.jsp",function(aH){if(aH.originalTarget==c||aH.originalTarget==aH.currentTarget){var aG=b(this),s=setInterval(function(){var aI=aG.offset(),aJ=aH.pageY-aI.top;if(H+A<aJ){S(H+au.trackClickSpeed)}else{if(aJ<H){S(H-au.trackClickSpeed)}else{aF()}}},au.trackClickRepeatFreq),aF=function(){s&&clearInterval(s);s=null;b(document).unbind("mouseup.jsp",aF)};b(document).bind("mouseup.jsp",aF);return false}})}if(aB){F.bind("mousedown.jsp",function(aH){if(aH.originalTarget==c||aH.originalTarget==aH.currentTarget){var aG=b(this),s=setInterval(function(){var aI=aG.offset(),aJ=aH.pageX-aI.left;if(X+ao<aJ){T(X+au.trackClickSpeed)}else{if(aJ<X){T(X-au.trackClickSpeed)}else{aF()}}},au.trackClickRepeatFreq),aF=function(){s&&clearInterval(s);s=null;b(document).unbind("mouseup.jsp",aF)};b(document).bind("mouseup.jsp",aF);return false}})}}function w(){F&&F.unbind("mousedown.jsp");al&&al.unbind("mousedown.jsp")}function ar(){b("html").unbind("dragstart.jsp selectstart.jsp mousemove.jsp mouseup.jsp mouseleave.jsp");ap&&ap.removeClass("jspActive");h&&h.removeClass("jspActive")}function S(s,aF){if(!av){return}if(s<0){s=0}else{if(s>i){s=i}}if(aF==c){aF=au.animateScroll}if(aF){N.animate(ap,"top",s,aa)}else{ap.css("top",s);aa(s)}}function aa(aF){if(aF==c){aF=ap.position().top}aj.scrollTop(0);H=aF;var aI=H==0,aG=H==i,aH=aF/i,s=-aH*(Wv);if(ag!=aI||aD!=aG){ag=aI;aD=aG;C.trigger("jsp-arrow-change",[ag,aD,M,k])}u(aI,aG);V.css("top",s);C.trigger("jsp-scroll-y",[-s,aI,aG])}function T(aF,s){if(!aB){return}if(aF<0){aF=0}else{if(aF>j){aF=j}}if(s==c){s=au.animateScroll}if(s){N.animate(h,"left",aF,ab)}else{h.css("left",aF);ab(aF)}}function ab(aF){if(aF==c){aF=h.position().left}aj.scrollTop(0);X=aF;var aI=X==0,aH=X==j,aG=aF/j,s=-aG*(Q-ah);if(M!=aI||k!=aH){M=aI;k=aH;C.trigger("jsp-arrow-change",[ag,aD,M,k])}r(aI,aH);V.css("left",s);C.trigger("jsp-scroll-x",[-s,aI,aH])}function u(aF,s){if(au.showArrows){am[aF?"addClass":"removeClass"]("jspDisabled");ac[s?"addClass":"removeClass"]("jspDisabled")}}function r(aF,s){if(au.showArrows){at[aF?"addClass":"removeClass"]("jspDisabled");animate(h,"sinistra",aF,ab)}else{h.css("sinistra",aF);ab(aF)}}function ab(aF){if(aF==c){aF=h.position().sinistra}aj.scrollTop(0);X=aF;var aI=X==0,aH=X==j,aG=aF/j,s=-aG*(Q-ah);if(M!=aI||k!=aH){M=aI;k=aH;C.trigger("jsp-arrow-change",[ag,aD,M,k])}r(aI,aH);V.css("sinistra",s);C.trigger("jsp-scroll-x",[-s,aI,aH])}function u(aF,s){if(au.showArrows){am[aF?"addClass":"removeClass"]("jspDisabled");ac[s?"addClass":"removeClass"]("jspDisabled")}}function r(aF,s){if(au.showArrows){at[aF?"addClass":"removeClass"]("jspDisabled");animate(h,"sinistra",aF,ab)}else{h.css("sinistra",aF);ab(aF)}}function ab(aF){if(aF==c){aF=h.position().sinistra}aj.scrollTop(0);X=aF;var aI=X==0,aH=X==j,aG=aF/j,s=-aG*(Q-ah);if(M!=aI||k!=aH){M=aI;k=aH;C.trigger("jsp-arrow-change",[ag,aD,M,k])}r(aI,aH);V.css("sinistra",s);C.trigger("jsp-scroll-x",[-s,aI,aH])}function u(aF,s){if(au.showArrows){am[aF?"addClass":"removeClass"]("jspDisabled");ac[s?"addClass":"removeClass"]("jspDisabled")}}function r(aF,s){if(au.showArrows){at[aF?"addClass":"removeClass"]("jspDisabled");

x[s?"addClass":"removeClass"]("jspDisabled")}}funzione J(s,aF){var aG=s/(Wv);S(aG*i,aF)}funzione K(aF,s){var aG=aF/(Q-ah);T(aG*j,s)}funzione Y(aN,aL,aF){var aJ,aH,s=0,aG,aK,aM;try{aJ=b(aN)}catch(aI){return}aH=aJ.outerHeight();aj.scrollTop(0);while(!aJ.is(".jspPane")){s+=aJ.position().top;aJ=aJ.offsetParent();if(/^body|html$/i.test(aJ[0].nodeName)){return}}aG=aw();aK=aG+v;if(s<aG||aL){aM=s-au.verticalGutter}else{if(s+aH>aK){aM=s-v+aH+au.verticalGutter}}if(aM){J(aM,aF)}}function ay(){return -V.position().left}function aw(){return -V.position().top}function ad(){aj.unbind(Z).bind(Z,function(aI,aJ,aH,aF){var aG=X,s=H;T(X+aH*au.mouseWheelSpeed,false);S(H-aF*au.mouseWheelSpeed,false);return aG==X&&s==H})}function n(){aj.unbind(Z)}function ax(){return false}function I(){V.unbind("focusin.jsp").bind("focusin.jsp",function(s){if(s.target===V[0]){return}Y(s.target,false)})}function D(){V.unbind("focusin.jsp")}function P(){var aF,s;C.attr("tabindex",0).unbind("keydown.jsp").bind("keydown.jsp",function(aJ){if(aJ.target!==C[0]){return}var aH=X,aG=H,aI=aF?2:16;switch(aJ.keyCode){case 40:S(H+aI,false);break;case 38:S(H-aI,false);break;case 34:case 32:J(aw()+Math.max(32,v)-16);break;case 33:J(aw()-v+16);break;case 35:J(Wv);break;case 36:J(0);break;case 39:T(X+aI,false);break;case 37:T(X-aI,false);break}if(!(aH==X&&aG==H)){aF=true;clearTimeout(s);s=setTimeout(function(){aF=false},260);return false}});if(au.hideFocus){C.css("outline","none");if("hideFocus" in aj[0]){C.attr("hideFocus",true)}}else{C.css("outline","");if("hideFocus" in aj[0]){C.attr("hideFocus",false)}}}function O(){C.attr("tabindex","-1").removeAttr("tabindex").unbind("keydown.jsp")}function B(){if(location.hash&&location.hash.length>1){var aG,aF;prova{aG=b(location.hash)}cattura(s){ritorna}se(aG.length&&V.find(aG)){se(aj.scrollTop()==0){aF=setInterval(funzione(){se(aj.scrollTop()>0){Y(location.hash,true);b(document).scrollTop(aj.position().top);clearInterval(aF)}},50)}altrimenti{Y(location.hash,true);b(document).scrollTop(aj.position().top)}}}}funzione af(){b("a.jspHijack").unbind("click.jsp-hijack").removeClass("jspHijack")}funzione m(){af();b("a[href^=#]").addClass("jspHijack").bind("click.jsp-hijack",function(){var s=this.href.split("#"),aF;if(s.length>1){aF=s[1];if(aF.length>0&&V.find("#"+aF).length>0){Y("#"+aF,true);return false}}})}b.extend(N,{reinitialise:function(aF){aF=b.extend({},aF,au);an(aF)},scrollToElement:function(aG,aF,s){Y(aG,aF,s)},scrollTo:function(aG,s,aF){ K(aG,aF);J(s,aF)},scrollToX:funzione(aF,s){K(aF,s)},scrollToY:funzione(s,aF){J(s,aF)},scrollBy:funzione(aF,s,aG){N.scrollByX(aF,aG);N.scrollByY(s,aG)},scrollByX: funzione (s, aG) { var aF = sì () + s, aH = aF / (in Q)); aG={};aG[aI]=s;aF.animate(aG,{duration:au.animateDuration,ease:au.animateEase,queue:false,step:aH})},getContentPositionX:function(){return ay()},getContentPositionY:function(){return aw ( ) } , getIsScrollableH : function () { return aB } , getIsScrollableV : function ( ) { return av } , getContentPane : function () { return V},scrollToBottom:function(s){S(i,s)},hijackInternalLinks:function(){m()}})}f=b.extend({},b.fn.jScrollPane.defaults,f);var e;this.each(function(){var g=b(this),h=g.data("jsp");if(h){h.reinitialize(f)}else{h=new d(g,f);g.data("jsp",h)}e=e?e.add(g):g});return e};b.fn.jScrollPane.defaults={showArrows:false,maintainPosition:true,clickOnTrack:true,autoRestart:false,autoRestartDelay:500,verticalDragMinHeight:0,verticalDragMaxHeight:99999,horizontalDragMinWidth:0,horizontalDragMaxWidth:99999,animateScroll:false,animateDuration:300,animateEase:"linear",hijack InternalLinks:false,verticalGutter:4,horizontalGutter:4,mouseWheelSpeed:10,arrowButtonSpeed:10,arrowRepeatFrequency:100,arrowScrollOnHover:false,trackClickSpeed ​​:30,trackClickRepeatFreq:100,verticalArrowPositions:"split",horizontalArrowPositions:"split",enableKeyboardNavigation:true,hideFocus:false}})(jQuery,this);
//]]>
</script>
<script>
$(document).ready(function() {
$('.scroll-pane').jScrollPane( {showArrows: true} );
});
</script>

Quindi cerca l'etichetta:

<corpo>

Oppure questa riga:

<body expr:class='"loading" + data:blog.mobileClass'>

Sotto una di queste due opzioni, aggiungi quanto segue:

<div class='scroll-pane' id='blog-container'>

Infine, trova il tag </body> e incolla questo sopra di esso:

</div>

Salva le modifiche e hai finito. In verde, vedrai dove sono stati modificati i colori della barra di scorrimento e le sue diverse aree. Dato che si tratta di CSS, puoi aggiungere altri stili se lo desideri, come ombre, angoli arrotondati, ecc.
Se vuoi nascondere i bordi superiore e inferiore (come nell'esempio), elimina la parte evidenziata in rosso.
Ricorda che lo script utilizza jQuery, quindi se lo hai già installato, non includere nuovamente lo script (la prima riga di codice). Se utilizzi Scriptaculous o Mootools, dovrai apportare alcune piccole modifiche affinché funzioni.
Il codice sembra lungo, ma è sempre meglio incorporare gli script direttamente nel template piuttosto che caricarli su un servizio di hosting. In questo modo, gli script saranno sempre disponibili e si caricheranno più velocemente. In ogni caso, il risultato finale è piuttosto gradevole esteticamente, non credi?

fonte