Create A Background Slideshow For Blogger

In the previous postal service nosotros saw how to brand the blog's background fill upward the enshroud regardless of the resolution of the monitor. The method that we'll work at i time amongst jQuery is a plugin called BackStretch which equally good has the selection of creating a slideshow of pictures equally a weblog wallpaper without losing the belongings of adjusting to the width together with peak of the screen.

What nosotros volition create inwards this entry is only this, endeavor to brand the blog's background to accept unopen to images that are changing, all amongst fade final result betwixt each transition.
You tin flame come across an illustration inwards this demo blog.

To seat this slideshow inwards the blog's background, only larn to Template - Edit HTML together with earlier </head> add together the next code:

<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js' type='text/javascript'/>
<script>
//<![CDATA[
/*
* jQuery Backstretch
* Version 1.2.8
* http://srobbin.com/jquery-plugins/jquery-backstretch/
* Add a dynamically-resized background image to the page
* Copyright (c) 2012 Scott Robbin (srobbin.com)
* Licensed nether the MIT license
* https://raw.github.com/srobbin/jquery-backstretch/master/LICENSE.txt
*/
;(function(a){a.backstretch=function(p,b,l){function s(){if(p){var b;0==c.length?c=a("<div />").attr("id","backstretch").css({left:0,top:0,position:m?"fixed":"absolute",overflow:"hidden",zIndex:-999999,margin:0,padding:0,height:"100%",width:"100%"}):c.find("img").addClass("deleteable");b=a("<img />").css({position:"absolute",display:"none",margin:0,padding:0,border:"none",zIndex:-999999,maxWidth:"none"}).bind("load",function(d){var b=a(this),e;b.css({width:"auto",height:"auto"});e=this.width||a(d.target).width();d=this.height||a(d.target).height();n=e/d;q();b.fadeIn(g.speed,function(){c.find(".deleteable").remove();"function"==typeof l&&l()})}).appendTo(c);0==a("body #backstretch").length&&(0===a(window).scrollTop()&&window.scrollTo(0,0),a("body").append(c));c.data("settings",g);b.attr("src",p);a(window).unbind("resize.backstretch").bind("resize.backstretch",function(){"onorientationchange"in window&&window.pageYOffset===0&&window.scrollTo(0,1);q()})}}function q(){try{j={left:0,top:0},rootWidth=h=o.width(),rootHeight=r?window.innerHeight:o.height(),f=h/n,f>=rootHeight?(k=(f-rootHeight)/2,g.centeredY&&(j.top="-"+k+"px")):(f=rootHeight,h=f*n,k=(h-rootWidth)/2,g.centeredX&&(j.left="-"+k+"px")),c.css({width:rootWidth,height:rootHeight}).find("img:not(.deleteable)").css({width:h,height:f}).css(j)}catch(a){}}var t={centeredX:!0,centeredY:!0,speed:0},c=a("#backstretch"),g=c.data("settings")||t;c.data("settings");var o,m,r,n,h,f,k,j;b&&"object"==typeof b&&a.extend(g,b);b&&"function"==typeof b&&(l=b);a(document).ready(function(){var b=window,d=navigator.userAgent,c=navigator.platform,e=d.match(/AppleWebKit\/([0-9]+)/),e=!!e&&e[1],f=d.match(/Fennec\/([0-9]+)/),f=!!f&&f[1],g=d.match(/Opera Mobi\/([0-9]+)/),h=!!g&&g[1],i=d.match(/MSIE ([0-9]+)/),i=!!i&&i[1];o=(m=!((-1<c.indexOf("iPhone")||-1<c.indexOf("iPad")||-1<c.indexOf("iPod"))&&e&&534>e||b.operamini&&"[object OperaMini]"==={}.toString.call(b.operamini)||g&&7458>h||-1<d.indexOf("Android")&&e&&533>e||f&&6>f||"palmGetResource"in window&&e&&534>e||-1<d.indexOf("MeeGo")&&-1<d.indexOf("NokiaBrowser/8.5.0")||i&&6>=i))?a(window):a(document);r=m&&window.innerHeight;s()});return this}})(jQuery);
//]]>
</script>

<script>
//<![CDATA[
var images = [
 "Image URL",
 "Image URL",
 "Image URL",
 "Image URL",
 "Image URL",
  ];

  $(images).each(function(){
 $('<img/>')[0].src = this;
  });
  var index = 0;
$.backstretch(images[index], {speed: 1000});
  var slideshow = setInterval(function() {
  index = (index >= images.length - 1) ? 0 : index + 1;
    $.backstretch(images[index]);
  }, 5000);
//]]>
</script>

Here add together the URLs of the images that volition last the background of your blog.
If yous would similar to add together to a greater extent than pictures, only add together afterward the var images = [ another occupation similar this:

 "Image URL",

The images volition last changing inwards the lodge yous accept added them, if yous desire these to look inwards a random order, together with then modify the minute component of the code amongst this:

<script>
//<![CDATA[
var images=new Array();
images[ 1 ]="Image URL";
images[ 2 ]="Image URL";
images[ 3 ]="Image URL";
images[ 4 ]="Image URL";
images[ 5 ]="Image URL";

  Array.prototype.shuffle = function() {
  var len = this.length;
  var i = len;
  spell (i--) {
  var p = parseInt(Math.random()*len);
  var t = this[i];
  this[i] = this[p];
  this[p] = t;
  }
};

  images.shuffle();
  $(images).each(function(){
 $('<img/>')[0].src = this;
  });
  var index = 0;
$.backstretch(images[index], {speed: 1000});
  var slideshow = setInterval(function() {
  index = (index >= images.length - 1) ? 0 : index + 1;
    $.backstretch(images[index]);
  }, 5000);
//]]>
</script>

You tin flame equally good add together to a greater extent than pictures past times adding a occupation similar this:

images[ 6 ]="Image URL";

But yous volition come across that inwards this instance in that place are unopen to consecutive numbers inwards blue, thence if yous add together unopen to other such equally 6, together with then the side past times side i should last 7, etc..

In both cases yous tin flame modify the duration of each image which is inwards the 5000 value that is at the terminate of the script.
The payoff of this slideshow inwards the blog's background is that images are automatically resized to the size of the monitor, thence that, no affair of the resolution, it should await good.

It is worth remembering that if yous are using Scriptaculous, yous accept to brand unopen to changes, together with if yous already work jQuery, should exit only i version.

Author page | Backstretch

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