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Slider automático para mostrar las últimas entradas

Hecha por el Potro de Ciudad Blogger

A continuación te presento otra alternativa para realizar slidershows. Esta con numeros en la parte alta.
Puedes verla funcionando AQUI


Hemos visto varios sliders con distintos efectos para todos los gustos. Pero muchos no se animan a usar uno por el "mantenimiento" que este implica, es decir, tener que estar editando el slider continuamente para cambiar los textos, los títulos, las imágenes, etc. Así que una petición constante es un slider que haga el "trabajo sucio", es decir, un slider que muestra las últimas entradas del blog de forma automática, sin necesidad de estar editando el slider una vez que esté puesto.

Featured Content Slider es un script original de Dynamic Drive, aunque el slider en sí es una extracción de la plantilla Simplex TranscriptMuestra las últimas 10 entradas publicadas en el blog con su imagen, el título, y un resumen de cada entrada.

Para poner este slider automático en el blog entra en la Edición HTML de la plantilla y antes de ]]></b:skin> pega los estilos:

/* Featured Content Slider
----------------------------------------------- */
#featuredContent {
margin:0 auto;
padding:7px 7px 5px;
width:450px;
display:block;
background:#efefef; /* Color de fondo */
}
#featured-slider {
position: relative;
overflow: hidden;
width:450px;
height: 320px;
}
#featured-slider img {
display:block;
height:auto !important;
}
#featured-slider .sliderPostPhoto {
position:relative;
height:256px;
width:450px;
overflow:hidden;
}
#featured-slider .sliderPostInfo {
position:absolute;
bottom:0;
width:450px;
min-height:30px;
color:#fff;
padding:5px;
background: url(http://lh3.googleusercontent.com/-jDLwXJiGntk/T29pYcTKb9I/AAAAAAAACUQ/gf-AfWqrTzY/s30/bgtransparent.png);
height:30px;
}
#featured-slider .sliderPostInfo p {
color:#fff;
font-size:1.1em;
padding:3px 5px 5px 6px;
}
#featured-slider .contentdiv {
visibility: hidden;
position: absolute;
left: 0;
top: 0;
z-index:1;
}
#paginate-featured-slider {
display:block;
margin-bottom:5px;
font:bold 14.6px Arial, verdana, sans-serif; /* Tamaño fuente de los números */
}
#paginate-featured-slider a {
color:#000;
padding:2px 7px;
background:#ddd;
}
#paginate-featured-slider a:hover {
text-decoration:none;
color:#cd1713; /* Color de fondo de la pestaña al pasar el cursor */
}
#paginate-featured-slider a.selected {
color:#fff;
text-decoration:none;
background:#cd1713; /* Color de fondo de la pestaña activa */
}
h2.featuredTitle {
font:14px "trebuchet ms", arial, sans-serif; /* Tamaño fuente de los títulos */
font-weight:normal;
letter-spacing:1px;
display:block !important;
margin: auto 0 !important;
}
h2.featuredTitle a {
color:#fff;
display:block;
padding:3px;
}
h2.featuredTitle a:hover {
text-decoration:underline;
}
Ahora antes de </head> pega los scripts, que son algo largos:

<script type='text/javascript'>
//<![CDATA[
// Featured Content Slider (CB)
//** Featured Content Slider script- (c) Dynamic Drive DHTML code library: http://www.dynamicdrive.com.
// Featured Content Slider- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
// This notice MUST stay intact for legal use
// Visit Dynamic Drive at http://www.dynamicdrive.com/ for this script and 100s more

var featuredcontentslider={
ajaxloadingmsg: '<div style="margin: 20px 0 0 20px"><img src="http://lh6.googleusercontent.com/-OxOn5W_Gb4Y/TS4sf308N0I/AAAAAAAAAic/qa-fhCghsYs/s32/loading.gif" /> Cargando imágenes...</div>',
bustajaxcache: true,
enablepersist: true,
settingcaches: {},
jumpTo:function(fcsid, pagenumber){
this.turnpage(this.settingcaches[fcsid], pagenumber)
},

ajaxconnect:function(setting){
var page_request = false
if (window.ActiveXObject){
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
}
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else if (window.XMLHttpRequest)
page_request = new XMLHttpRequest()
else
return false
var pageurl=setting.contentsource[1]
page_request.onreadystatechange=function(){
featuredcontentslider.ajaxpopulate(page_request, setting)
}
document.getElementById(setting.id).innerHTML=this.ajaxloadingmsg
var bustcache=(!this.bustajaxcache)? "" : (pageurl.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
page_request.open('GET', pageurl+bustcache, true)
page_request.send(null)
},

ajaxpopulate:function(page_request, setting){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){
document.getElementById(setting.id).innerHTML=page_request.responseText
this.buildpaginate(setting)
}
},

buildcontentdivs:function(setting){
var alldivs=document.getElementById(setting.id).getElementsByTagName("div")
for (var i=0; i<alldivs.length; i++){
if (this.css(alldivs[i], "contentdiv", "check")){
setting.contentdivs.push(alldivs[i])
alldivs[i].style.display="none"
}
}
},

buildpaginate:function(setting){
this.buildcontentdivs(setting)
var sliderdiv=document.getElementById(setting.id)
var pdiv=document.getElementById("paginate-"+setting.id)
var phtml=""
var toc=setting.toc
var nextprev=setting.nextprev
if (typeof toc=="string" && toc!="markup" || typeof toc=="object"){
for (var i=1; i<=setting.contentdivs.length; i++){
phtml+='<a href="#'+i+'" class="toc">'+(typeof toc=="string"? toc.replace(/#increment/, i) : toc[i-1])+'</a> '
}
phtml=(nextprev[0]!=''? '<a href="#prev" class="prev">'+nextprev[0]+'</a> ' : '') + phtml + (nextprev[1]!=''? '<a href="#next" class="next">'+nextprev[1]+'</a>' : '')
pdiv.innerHTML=phtml
}
var pdivlinks=pdiv.getElementsByTagName("a")
var toclinkscount=0 //var to keep track of actual # of toc links
for (var i=0; i<pdivlinks.length; i++){
if (this.css(pdivlinks[i], "toc", "check")){
if (toclinkscount>setting.contentdivs.length-1){
          pdivlinks[i].style.display="none"
continue
}
pdivlinks[i].setAttribute("rel", ++toclinkscount)
pdivlinks[i][setting.revealtype]=function(){
featuredcontentslider.turnpage(setting, this.getAttribute("rel"))
return false
}
setting.toclinks.push(pdivlinks[i])
}
else if (this.css(pdivlinks[i], "prev", "check") || this.css(pdivlinks[i], "next", "check")){
pdivlinks[i].onclick=function(){
featuredcontentslider.turnpage(setting, this.className)
return false
}
}
}
this.turnpage(setting, setting.currentpage, true)
if (setting.autorotate[0]){
pdiv[setting.revealtype]=function(){
featuredcontentslider.cleartimer(setting, window["fcsautorun"+setting.id])
}
sliderdiv["onclick"]=function(){
featuredcontentslider.cleartimer(setting, window["fcsautorun"+setting.id])
}
setting.autorotate[1]=setting.autorotate[1]+(1/setting.enablefade[1]*50)
 this.autorotate(setting)
}
},

urlparamselect:function(fcsid){
var result=window.location.search.match(new RegExp(fcsid+"=(\\d+)", "i"))
return (result==null)? null : parseInt(RegExp.$1)
},

turnpage:function(setting, thepage, autocall){
var currentpage=setting.currentpage //current page # before change
var totalpages=setting.contentdivs.length
var turntopage=(/prev/i.test(thepage))? currentpage-1 : (/next/i.test(thepage))? currentpage+1 : parseInt(thepage)
turntopage=(turntopage<1)? totalpages : (turntopage>totalpages)? 1 : turntopage //test for out of bound and adjust
if (turntopage==setting.currentpage && typeof autocall=="undefined") //if a pagination link is clicked on repeatedly
return
setting.currentpage=turntopage
setting.contentdivs[turntopage-1].style.zIndex=++setting.topzindex
this.cleartimer(setting, window["fcsfade"+setting.id])
setting.cacheprevpage=setting.prevpage
if (setting.enablefade[0]==true){
setting.curopacity=0
this.fadeup(setting)
}
if (setting.enablefade[0]==false){ //if fade is disabled, fire onChange event immediately (verus after fade is complete)
setting.contentdivs[setting.prevpage-1].style.display="none" //collapse last content div shown (it was set to "block")
setting.onChange(setting.prevpage, setting.currentpage)
}
setting.contentdivs[turntopage-1].style.visibility="visible"
setting.contentdivs[turntopage-1].style.display="block"
if (setting.prevpage<=setting.toclinks.length) //make sure pagination link exists (may not if manually defined via "markup", and user omitted)
this.css(setting.toclinks[setting.prevpage-1], "selected", "remove")
if (turntopage<=setting.toclinks.length) //make sure pagination link exists (may not if manually defined via "markup", and user omitted)
this.css(setting.toclinks[turntopage-1], "selected", "add")
setting.prevpage=turntopage
if (this.enablepersist)
this.setCookie("fcspersist"+setting.id, turntopage)
},

setopacity:function(setting, value){
var targetobject=setting.contentdivs[setting.currentpage-1]
if (targetobject.filters && targetobject.filters[0]){ //IE syntax
if (typeof targetobject.filters[0].opacity=="number") //IE6
targetobject.filters[0].opacity=value*100
else //IE 5.5
targetobject.style.filter="alpha(opacity="+value*100+")"
}
else if (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
targetobject.style.MozOpacity=value
else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
targetobject.style.opacity=value
setting.curopacity=value
},

fadeup:function(setting){
if (setting.curopacity<1){
this.setopacity(setting, setting.curopacity+setting.enablefade[1])
window["fcsfade"+setting.id]=setTimeout(function(){featuredcontentslider.fadeup(setting)}, 50)
}
else{ //when fade is complete
if (setting.cacheprevpage!=setting.currentpage) //if previous content isn't the same as the current shown div (happens the first time the page loads/ script is run)
setting.contentdivs[setting.cacheprevpage-1].style.display="none" //collapse last content div shown (it was set to "block")
setting.onChange(setting.cacheprevpage, setting.currentpage)
}
},

cleartimer:function(setting, timervar){
if (typeof timervar!="undefined"){
clearTimeout(timervar)
clearInterval(timervar)
if (setting.cacheprevpage!=setting.currentpage){ //if previous content isn't the same as the current shown div
setting.contentdivs[setting.cacheprevpage-1].style.display="none"
}
}
},

css:function(el, targetclass, action){
var needle=new RegExp("(^|\\s+)"+targetclass+"($|\\s+)", "ig")
if (action=="check")
return needle.test(el.className)
else if (action=="remove")
el.className=el.className.replace(needle, "")
else if (action=="add")
el.className+=" "+targetclass
},

autorotate:function(setting){
 window["fcsautorun"+setting.id]=setInterval(function(){featuredcontentslider.turnpage(setting, "next")}, setting.autorotate[1])
},

getCookie:function(Name){
var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return null
},

setCookie:function(name, value){
document.cookie = name+"="+value

},


init:function(setting){
var persistedpage=this.getCookie("fcspersist"+setting.id) || 1
var urlselectedpage=this.urlparamselect(setting.id) //returns null or index from: mypage.htm?featuredcontentsliderid=index
this.settingcaches[setting.id]=setting //cache "setting" object
setting.contentdivs=[]
setting.toclinks=[]
setting.topzindex=0
setting.currentpage=urlselectedpage || ((this.enablepersist)? persistedpage : 1)
setting.prevpage=setting.currentpage
setting.revealtype="on"+(setting.revealtype || "click")
setting.curopacity=0
setting.onChange=setting.onChange || function(){}
if (setting.contentsource[0]=="inline")
this.buildpaginate(setting)
if (setting.contentsource[0]=="ajax")
this.ajaxconnect(setting)
}}

imgr = new Array();
imgr[0] = "http://lh4.googleusercontent.com/-xOm3GjEeKp0/T29pY9DlYPI/AAAAAAAACUY/Ec_j6_CMB5M/s000/sin-imagen.png";
showRandomImg = true;

aBold = true;

summaryPost = 220;
summaryTitle = 25;

numposts = 10;
numposts1 = 1;
numposts2 = 4;
numposts3 = 4;
numposts4 = 1;
numposts5 = 4;
numposts6 = 6;
numposts7 = 5;
numposts8= 10;
numposts9= 8;
numposts10= 12;


function removeHtmlTag(strx,chop){
var s = strx.split("<");
for(var i=0;i<s.length;i++){
if(s[i].indexOf(">")!=-1){
s[i] = s[i].substring(s[i].indexOf(">")+1,s[i].length);
}
}
s =  s.join("");
s = s.substring(0,chop-1);
return s;
}

function showrecentposts1(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();

   for (var i = 0; i < numposts; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';


var trtd = '<div class="featuredPost lastPost"><h2 class="postTitle"><a href="'+posturl+'">'+posttitle+'</a></h2><a href="'+posturl+'"><img width="70" height="70" class="alignleft" src="'+img[i]+'"/></a><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p></div>';
document.write(trtd);


j++;
}

}

function showrecentposts1a(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();

   for (var i = 0; i < numposts; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';



var trtd = '<div class="featuredPost"><h2 class="postTitle"><a href="'+posturl+'">'+posttitle+'</a></h2><a href="'+posturl+'"><img width="60" height="45" class="alignright" src="'+img[i]+'"/></a><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p></div>';
document.write(trtd);


j++;
}

}


function showrecentposts2(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();

   for (var i = 0; i < 10; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';

var trtd = '<li><a href="'+posturl+'">'+posttitle+'</a></li>';
document.write(trtd);


j++;
}

}

function showrecentposts3(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();
     document.write('<div class="featuredPost lastpost">');
   for (var i = 0; i < 10; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';



if (i==0) {
var trtd = '<a href="'+posturl+'"><img width="75" height="42" class="alignleft" src="'+img[i]+'"/></a><h2 class="spostTitle"><a href="'+posturl+'">'+posttitle+'</a></h2><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p></div>';
document.write(trtd);
          }
if ((i>0)&&(i<numposts)) {
var trtd = '<a href="'+posturl+'" class="list">'+posttitle+'</a>';
document.write(trtd);
          }
  j++;
}
document.write(' </div>');

}

function showrecentposts4(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();
if (numposts5 <= json.feed.entry.length) {
maxpost = numposts5;
}
else
       {
   maxpost=json.feed.entry.length;
   }

     for (var i = 0; i < maxpost; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';


if (i==0) {
var trtd = '<div class="bottomBox_wide left"><div class="thumb"><a href="'+posturl+'"><img width="300" height="225" class="alignone" src="'+img[i]+'"/></a></div><div class="featuredPost lastPost"><h2 class="postTitle"><a href="'+posturl+'">'+posttitle+'</a></h2> <p>'+removeHtmlTag(postcontent,summaryPost)+'...</p><div class="clear"></div></div></div><div class="bottomBox_narrow right">';
document.write(trtd);
          }
if ((i>0)&&(i<maxpost)) {
var trtd = '<div class="featuredPost"><h2 class="postTitle"><a href="'+posturl+'">'+posttitle+'</a></h2><a href="'+posturl+'"><img class="alignright" height="55" src="'+img[i]+'" width="55"/></a><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p><div class="clear"></div></div>';
document.write(trtd);
 }
 j++;
}
document.write('</div>');
}

function showrecentposts4a(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();
    if (numposts5 <= json.feed.entry.length) {
maxpost = numposts5;
}
else
       {
   maxpost=json.feed.entry.length;
   }

     for (var i = 0; i < maxpost; i++) {
 var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';


if (i==0) {
var trtd = '<div class="bottomBox_wide right"><div class="thumb"><a href="'+posturl+'"><img width="300" height="225" class="alignone" src="'+img[i]+'"/></a></div><div class="featuredPost lastPost"><h2 class="postTitle"><a href="'+posturl+'">'+posttitle+'</a></h2><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p><div class="clear"></div></div></div><div class="bottomBox_narrow left">';
document.write(trtd);
          }
if ((i>0)&&(i<maxpost)) {
var trtd = '<div class="featuredPost"><h2 class="postTitle"><a href="'+posturl+'">'+posttitle+'</a></h2><a href="'+posturl+'"><img class="alignright" height="55" src="'+img[i]+'" width="55"/></a><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p><div class="clear"></div></div>';
document.write(trtd);
 }
 j++;
}
document.write('</div>');
}


function showrecentposts5(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();
 
   for (var i = 0; i < numposts5; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';


var trtd = '<li><div class="entry"><a href="'+posturl+'"><img width="80" height="85" class="alignleft" src="'+img[i]+'"/></a><h2 class="sidebarPostTitle"><a href="'+posturl+'">'+posttitle+'</a></h2><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p></div></li>';
document.write(trtd);  

  j++;
}

}

function showrecentposts6(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();
 
   for (var i = 0; i < numposts6; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';


var trtd = '<div class="text"><h2 class="postTitle"><a href="'+posturl+'">'+posttitle+'</a></h2><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p><div class="clear"></div> </div><div class="imgThumb"><a href="'+posturl+'"><img width="269" height="201" class="alignright" src="'+img[i]+'"/></a></div>';
document.write(trtd);  

  j++;
}

}

function showrecentposts7(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();
     document.write('<ul>');
   for (var i = 0; i < numposts7; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';



var trtd = '<li class="car"><div class="thumb"><a href="'+posturl+'"><img width="150" height="113" class="alignnone" src="'+img[i]+'"/></a> </div><div class="info"><p>'+posttitle+'</p><p class="morePhoto"><a href="'+posturl+'">Leer más</a></p></div></li> ';
document.write(trtd);  

  j++;
}
 document.write('</ul>');
}

function showrecentposts8(json) {
j = (showRandomImg) ? Math.floor((imgr.length+1)*Math.random()) : 0;
img  = new Array();

   for (var i = 0; i < numposts8 ; i++) {
     var entry = json.feed.entry[i];
     var posttitle = entry.title.$t;
var pcm;
     var posturl;
     if (i == json.feed.entry.length) break;
     for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'alternate') {
         posturl = entry.link[k].href;
         break;
       }
     }

for (var k = 0; k < entry.link.length; k++) {
       if (entry.link[k].rel == 'replies' && entry.link[k].type == 'text/html') {
         pcm = entry.link[k].title.split(" ")[0];
         break;
       }
     }

     if ("content" in entry) {
       var postcontent = entry.content.$t;}
     else
     if ("summary" in entry) {
       var postcontent = entry.summary.$t;}
     else var postcontent = "";
    
     postdate = entry.published.$t;

if(j>imgr.length-1) j=0;
img[i] = imgr[j];

s = postcontent ; a = s.indexOf("<img"); b = s.indexOf("src=\"",a); c = s.indexOf("\"",b+5); d = s.substr(b+5,c-b-5);

if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")) img[i] = d;

//cmtext = (text != 'no') ? '<i><font color="'+acolor+'">('+pcm+' '+text+')</font></i>' : '';


var trtd = '<div class="contentdiv"><div class="sliderPostPhoto"><a href="'+posturl+'"><img width="100%" height="341" class="alignnone" src="'+img[i]+'"/></a><div class="sliderPostInfo"><h2 class="featuredTitle"><a href="'+posturl+'">'+posttitle+'</a></h2></div></div><div class="featuredPost lastPost"><p>'+removeHtmlTag(postcontent,summaryPost)+'...</p></div></div>';
document.write(trtd);  

  j++;
}

}

 //]]>
</script>

<script type='text/javascript'>
var classicMode = false ;
var summary = 30;
var indent = 3;

function stripHtmlTags(s,max){return s.replace(/&lt;.*?&gt;/ig, &#39;&#39;).split(/\s+/).slice(0,max-1).join(&#39; &#39;)}

function getSummaryLikeWP(id) {
        return document.getElementById(id).innerHTML.split(/&lt;!--\s*more\s*--&gt;/)[0];
}

function getSummaryImproved(post,max){
   var re = /&lt;.*?&gt;/gi
   var re2 = /&lt;br.*?&gt;/gi
   var re3 = /(&lt;\/{1}p&gt;)|(&lt;\/{1}div&gt;)/gi
   var re4 = /(&lt;style.*?\/{1}style&gt;)|(&lt;script.*?\/{1}script&gt;)|(&lt;table.*?\/{1}table&gt;)|(&lt;form.*?\/{1}form&gt;)|(&lt;code.*?\/{1}code&gt;)|(&lt;pre.*?\/{1}pre&gt;)/gi

   post = post.replace(re4,&#39;&#39;)
   post = post.replace(re3,&#39;&lt;br /&gt; &#39;).split(re2)

   for(var i=0; i&lt;post.length; i++){
    post[i] = post[i].replace(re,&#39;&#39;);
   }
 var post2 = new Array();
 for(var i in post) {
  //if(post[i]!=&#39;&#39; &amp;&amp; post[i]!=&#39; &#39; &amp;&amp; post[i] != &#39;\n&#39;) post2.push(post[i]);
  if(/[a-zA-Z0-9]/.test(post[i])) post2.push(post[i]) ;

 }


 var s = &quot;&quot;;
 var indentBlank = &quot;&quot;;
 for(var i=0;i&lt;indent;i++){
  indentBlank += &quot; &quot;;
 }
 if(post2.join(&#39;&lt;br/&gt;&#39;).split(&#39; &#39;).length &lt; max-1 ){
   s = post2.join(indentBlank +&#39; &lt;br/&gt;&#39;);
 } else {
  var i = 0;
  while(s.split(&#39; &#39;).length &lt; max){
   s += indentBlank + &#39; &#39; + post2[i]+&#39;&lt;br/&gt;&#39;;
   i++;
  }
 }
 return s;
}


function createSummaryAndThumb(pID,title,url,date,comment){
 var posturl= url;
 var title=title;
 var date =date;
 var comment = comment;
 var div = document.getElementById(pID);
 var content = div.innerHTML;
 if (/&lt;!--\s*more\s*--&gt;/.test(content)) {
  div.innerHTML = getSummaryLikeWP(pID);
  div.style.display = &quot;block&quot;;
 }
 else {

 var imgtag = &quot;&quot;;
 var img = div.getElementsByTagName(&quot;img&quot;);
 var summ = summary;
 if(img.length&gt;=1) {
   imgtag = &#39;&lt;a href=&quot;&#39;+posturl+&#39;&quot;&gt;&lt;img width=&quot;90&quot; height=&quot;65&quot; class=&quot;alignleft&quot; src=&quot;&#39;+img[0].src+&#39;&quot;&gt;&lt;/a&gt;&#39;;
   }
  var summary1 = imgtag+&#39;&lt;p&gt;&#39;+stripHtmlTags(content,summary)+&#39;...&lt;/p&gt;&#39;;

 div.innerHTML = summary1;
 div.style.display = &quot;block&quot;;
 }
}
</script>

Por último,  busca esta línea:
<b:widget id='Blog1' locked='true' title='Entradas del blog' type='Blog'/>

Justo arriba de ella agrega esto:

<b:widget id='HTML88' locked='false' title='Slider' type='HTML'>
<b:includable id='main'>
<div id='featuredContent'>   <div id='paginate-featured-slider'>
<a class='prev' href='#prev'>Anterior</a>
<a class='toc' href='#1' rel='1'>1</a>
<a class='toc' href='#2' rel='2'>2</a>
<a class='toc' href='#3' rel='3'>3</a>
<a class='toc' href='#4' rel='4'>4</a>
<a class='toc' href='#5' rel='5'>5</a>
<a class='toc' href='#6' rel='6'>6</a>
<a class='toc' href='#7' rel='7'>7</a>
<a class='toc' href='#8' rel='8'>8</a>
<a class='toc' href='#9' rel='9'>9</a>
<a class='toc' href='#10' rel='10'>10</a>
<a class='next' href='#next'>Siguiente</a>
</div>
<div class='sliderwrapper' id='featured-slider'>
<script>
document.write(&quot;&lt;script src=\&quot;http://www.nombre-de-mi-blog.blogspot.com/feeds/posts/default?max-results=&quot;+numposts10+&quot;&amp;orderby=published&amp;alt=json-in-script&amp;callback=showrecentposts8\&quot;&gt;&lt;\/script&gt;&quot;);
</script>
</div>
<script type='text/javascript'>
featuredcontentslider.init({
id: &quot;featured-slider&quot;,  contentsource: [&quot;inline&quot;, &quot;&quot;],
toc: &quot;#increment&quot;,
nextprev: [&quot;&#171; Anterior&quot;,&quot;Siguiente &#187;&quot;],
revealtype: &quot;click&quot;,
enablefade: [true, 0.4],
autorotate: [true, 5000],
onChange: function(previndex, curindex){ }
 })
</script>
</div>
</b:includable>
</b:widget>
Agrega el nombre de tu blog donde se indica y listo.
El slider estará arriba de tus entradas, aunque una vez puesto puedes arrastrar el gadget al lugar que quieras desde la sección de Diseño.

Aunque el ancho del slider se puede modificar, lo ideal sería dejarlo tal como está, pues hacerlo más ancho implicaría agregar más pestañas y eso podría hacer más lenta la carga del blog, ya que como pueden ver el script es bastante largo.

Las imágenes cambian solas, pero si el usuario navega através de las pestañas entonces el slider se detendrá para que el lector pueda ver el contenido tranquilamente.

Cuando una entrada no tenga imagen mostrará una imagen por defecto, para cambiarla por alguna otra de tu preferencia, busca en el script esta URL y cámbiala por la de tu imagen:
http://lh4.googleusercontent.com/-xOm3GjEeKp0/T29pY9DlYPI/AAAAAAAACUY/Ec_j6_CMB5M/s000/sin-imagen.png

En caso de que el texto del resumen se llegara a exceder podemos modificar el número de caracteres a mostrar:
summaryPost = 220;
Se encuentra dentro del script, y con un valor más bajo mostrará menos caracteres en el resumen de las entradas.

La ventaja de este slider es que una vez puesto recogerá los datos de las 10 últimas entradas de forma automática, así que ya no tendremos que hacer nada más excepto disfrutarlo.

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