Iconos RSS y efecto de nieve para decorar tu blog esta navidad

Bueno, como ya estamos en plena Navidad, que mejor que decorar nuestro blog de esta festividad con unos interesantes iconos RSS navideños, al igual que hicimos con Halloween :)

● Este pack de Christmas RSS contiene 12 iconos muy bonitos, fantásticos para el blog.

La entrada original es ésta, donde podréis acceder a descargarlos :)

● Otros atractivos y brillantes iconos RSS en forma de bolas de navidad: Christmas Feed Icons

Entrada original en Webfruits.it y descarga.

También pueden descargarse mediante IconsPedia en esta página

■ Nieve flotante en el blog

Cómo habrás visto, desde hace muy poco hemos implementado un script en la plantilla de La Trucoteca de Blogs para que el blog esté decorado (¡qué mejor fecha para hacerlo!) con una bonita cortina de copos de nieve.

El Script, que hemos descubierto en El Escaparate de Rosa y original a su vez de Schillmania es muy fácil de colocar.

♦ Nos dirigimos a Diseño>Edición de HTML.

Ahora, antes de </head>, tan solo hay que insertar el siguiente código:

<script type="text/javascript">
//<![CDATA[
/*
DHTML Snowstorm! OO-style Jascript-based Snow effect
----------------------------------------------------
Version 1.4.20091115 (Previous rev: v1.3.20081215)
Code by Scott Schiller - http://schillmania.com
----------------------------------------------------
Initializes after body onload() by default (via addEventHandler() call at bottom.
To customize properties, edit below or override configuration after this script
has run (but before body.onload), eg. snowStorm.snowStick = false;
*/
var snowStorm = null;
function SnowStorm() {

// --- PROPERTIES ---

this.flakesMax = 150; // Limit total amount of snow made (falling + sticking)

this.flakesMaxActive = 64; // Limit amount of snow falling at once (less = lower CPU use)

this.animationInterval = 33; // Theoretical "miliseconds per frame" measurement. 20 = fast + smooth, but high CPU use. 50 = more conservative, but slower
this.flakeBottom = null; // Integer for Y axis snow limit, 0 or null for "full-screen" snow effect
this.targetElement = null; // element which snow will be appended to (document body if null/undefined) - can be an element ID string, or a DOM node reference
this.followMouse = true; // Snow will change movement with the user's mouse
this.snowColor = '#fff'; // Don't eat (or use?) yellow snow.
this.snowCharacter = '•'; // • = bullet, · is square on some systems etc.
this.snowStick = true; // Whether or not snow should "stick" at the bottom. When off, will never collect.
this.useMeltEffect = true; // When recycling fallen snow (or rarely, when falling), have it "melt" and fade out if browser supports it
this.useTwinkleEffect = false; // Allow snow to randomly "flicker" in and out of view while falling
this.usePositionFixed = false; // true = snow not affected by window scroll. may increase CPU load, disabled by default - if enabled, used only where supported

// --- less-used bits ---
this.flakeLeftOffset = 0; // amount to subtract from edges of container
this.flakeRightOffset = 0; // amount to subtract from edges of container
this.flakeWidth = 8; // max pixel width for snow element
this.flakeHeight = 8; // max pixel height for snow element
this.vMaxX = 5; // Maximum X velocity range for snow

this.vMaxY = 4; // Maximum Y velocity range

this.zIndex = 0; // CSS stacking order applied to each snowflake

// --- End of user section ---

// jslint global declarations

/*global window, document, navigator, clearInterval, setInterval */

var addEvent = (typeof(window.attachEvent)=='undefined'?function(o,evtName,evtHandler) {

return o.addEventListener(evtName,evtHandler,false);

}:function(o,evtName,evtHandler) {

return o.attachEvent('on'+evtName,evtHandler);

});

var removeEvent = (typeof(window.attachEvent)=='undefined'?function(o,evtName,evtHandler) {

return o.removeEventListener(evtName,evtHandler,false);

}:function(o,evtName,evtHandler) {

return o.detachEvent('on'+evtName,evtHandler);

});

function rnd(n,min) {

if (isNaN(min)) {

min = 0;

}

return (Math.random()*n)+min;

}

function plusMinus(n) {

return (parseInt(rnd(2),10)==1?n*-1:n);

}

var s = this;

var storm = this;

this.timers = [];

this.flakes = [];

this.disabled = false;

this.active = false;

var isIE = navigator.userAgent.match(/msie/i);

var isIE6 = navigator.userAgent.match(/msie 6/i);

var isOldIE = (isIE && (isIE6 || navigator.userAgent.match(/msie 5/i)));

var isWin9X = navigator.appVersion.match(/windows 98/i);

var isiPhone = navigator.userAgent.match(/iphone/i);

var isBackCompatIE = (isIE && document.compatMode == 'BackCompat');

var noFixed = ((isBackCompatIE || isIE6 || isiPhone)?true:false);

var screenX = null;

var screenX2 = null;

var screenY = null;

var scrollY = null;

var vRndX = null;

var vRndY = null;

var windOffset = 1;

var windMultiplier = 2;

var flakeTypes = 6;

var fixedForEverything = false;

var opacitySupported = (function(){

try {

document.createElement('div').style.opacity = '0.5';

} catch (e) {

return false;

}

return true;

})();

var docFrag = document.createDocumentFragment();

if (s.flakeLeftOffset === null) {

s.flakeLeftOffset = 0;

}

if (s.flakeRightOffset === null) {

s.flakeRightOffset = 0;

}

this.meltFrameCount = 20;

this.meltFrames = [];

for (var i=0; i<this.meltFrameCount; i++) {

this.meltFrames.push(1-(i/this.meltFrameCount));

}

this.randomizeWind = function() {

vRndX = plusMinus(rnd(s.vMaxX,0.2));

vRndY = rnd(s.vMaxY,0.2);

if (this.flakes) {

for (var i=0; i<this.flakes.length; i++) {

if (this.flakes[i].active) {

this.flakes[i].setVelocities();

}

}

}

};

this.scrollHandler = function() {

// "attach" snowflakes to bottom of window if no absolute bottom value was given

scrollY = (s.flakeBottom?0:parseInt(window.scrollY||document.documentElement.scrollTop||document.body.scrollTop,10));

if (isNaN(scrollY)) {

scrollY = 0; // Netscape 6 scroll fix

}

if (!fixedForEverything && !s.flakeBottom && s.flakes) {

for (var i=s.flakes.length; i--;) {

if (s.flakes[i].active === 0) {

s.flakes[i].stick();

}

}

}

};

this.resizeHandler = function() {

if (window.innerWidth || window.innerHeight) {

screenX = window.innerWidth-(!isIE?16:2)-s.flakeRightOffset;

screenY = (s.flakeBottom?s.flakeBottom:window.innerHeight);

} else {

screenX = (document.documentElement.clientWidth||document.body.clientWidth||document.body.scrollWidth)-(!isIE?8:0)-s.flakeRightOffset;

screenY = s.flakeBottom?s.flakeBottom:(document.documentElement.clientHeight||document.body.clientHeight||document.body.scrollHeight);

}

screenX2 = parseInt(screenX/2,10);

};

this.resizeHandlerAlt = function() {

screenX = s.targetElement.offsetLeft+s.targetElement.offsetWidth-s.flakeRightOffset;

screenY = s.flakeBottom?s.flakeBottom:s.targetElement.offsetTop+s.targetElement.offsetHeight;

screenX2 = parseInt(screenX/2,10);

};

this.freeze = function() {

// pause animation

if (!s.disabled) {

s.disabled = 1;

} else {

return false;

}

for (var i=s.timers.length; i--;) {

clearInterval(s.timers[i]);

}

};

this.resume = function() {

if (s.disabled) {

s.disabled = 0;

} else {

return false;

}

s.timerInit();

};

this.toggleSnow = function() {

if (!s.flakes.length) {

// first run

s.start();

} else {

s.active = !s.active;

if (s.active) {

s.show();

s.resume();

} else {

s.stop();

s.freeze();

}

}

};

this.stop = function() {

this.freeze();

for (var i=this.flakes.length; i--;) {

this.flakes[i].o.style.display = 'none';

}

removeEvent(window,'scroll',s.scrollHandler);

removeEvent(window,'resize',s.resizeHandler);

if (!isOldIE) {

removeEvent(window,'blur',s.freeze);

removeEvent(window,'focus',s.resume);

}

};

this.show = function() {

for (var i=this.flakes.length; i--;) {

this.flakes[i].o.style.display = 'block';

}

};

this.SnowFlake = function(parent,type,x,y) {

var s = this;

var storm = parent;

this.type = type;

this.x = x||parseInt(rnd(screenX-20),10);

this.y = (!isNaN(y)?y:-rnd(screenY)-12);

this.vX = null;

this.vY = null;

this.vAmpTypes = [1,1.2,1.4,1.6,1.8]; // "amplification" for vX/vY (based on flake size/type)

this.vAmp = this.vAmpTypes[this.type];

this.melting = false;

this.meltFrameCount = storm.meltFrameCount;

this.meltFrames = storm.meltFrames;

this.meltFrame = 0;

this.twinkleFrame = 0;

this.active = 1;

this.fontSize = (10+(this.type/5)*10);

this.o = document.createElement('div');

this.o.innerHTML = storm.snowCharacter;

this.o.style.color = storm.snowColor;

this.o.style.position = (fixedForEverything?'fixed':'absolute');

this.o.style.width = storm.flakeWidth+'px';

this.o.style.height = storm.flakeHeight+'px';

this.o.style.fontFamily = 'arial,verdana';

this.o.style.overflow = 'hidden';

this.o.style.fontWeight = 'normal';

this.o.style.zIndex = storm.zIndex;

docFrag.appendChild(this.o);

this.refresh = function() {

if (isNaN(s.x) || isNaN(s.y)) {

// safety check

return false;

}

s.o.style.left = s.x+'px';

s.o.style.top = s.y+'px';

};

this.stick = function() {

if (noFixed || (storm.targetElement != document.documentElement && storm.targetElement != document.body)) {

s.o.style.top = (screenY+scrollY-storm.flakeHeight)+'px';

} else if (storm.flakeBottom) {

s.o.style.top = storm.flakeBottom+'px';

} else {

s.o.style.display = 'none';

s.o.style.top = 'auto';

s.o.style.bottom = '0px';

s.o.style.position = 'fixed';

s.o.style.display = 'block';

}

};

this.vCheck = function() {

if (s.vX>=0 && s.vX<0.2) {

s.vX = 0.2;

} else if (s.vX<0 && s.vX>-0.2) {

s.vX = -0.2;

}

if (s.vY>=0 && s.vY<0.2) {

s.vY = 0.2;

}

};



this.move = function() {

var vX = s.vX*windOffset;

s.x += vX;

s.y += (s.vY*s.vAmp);

if (s.x >= screenX || screenX-s.x < storm.flakeWidth) { // X-axis scroll check

s.x = 0;

} else if (vX < 0 && s.x-storm.flakeLeftOffset<0-storm.flakeWidth) {

s.x = screenX-storm.flakeWidth-1; // flakeWidth;

}

s.refresh();

var yDiff = screenY+scrollY-s.y;

if (yDiff<storm.flakeHeight) {

s.active = 0;

if (storm.snowStick) {

s.stick();

} else {

s.recycle();

}

} else {

if (storm.useMeltEffect && s.active && s.type < 3 && !s.melting && Math.random()>0.998) {

// ~1/1000 chance of melting mid-air, with each frame

s.melting = true;

s.melt();

// only incrementally melt one frame

// s.melting = false;

}

if (storm.useTwinkleEffect) {

if (!s.twinkleFrame) {

if (Math.random()>0.9) {

s.twinkleFrame = parseInt(Math.random()*20,10);

}

} else {

s.twinkleFrame--;

s.o.style.visibility = (s.twinkleFrame && s.twinkleFrame%2===0?'hidden':'visible');
}
}
}
};

this.animate = function() {

// main animation loop

// move, check status, die etc.

s.move();

};

this.setVelocities = function() {

s.vX = vRndX+rnd(storm.vMaxX*0.12,0.1);

s.vY = vRndY+rnd(storm.vMaxY*0.12,0.1);

};

this.setOpacity = function(o,opacity) {

if (!opacitySupported) {

return false;

}

o.style.opacity = opacity;

};

this.melt = function() {

if (!storm.useMeltEffect || !s.melting) {

s.recycle();

} else {

if (s.meltFrame < s.meltFrameCount) {

s.meltFrame++;

s.setOpacity(s.o,s.meltFrames[s.meltFrame]);

s.o.style.fontSize = s.fontSize-(s.fontSize*(s.meltFrame/s.meltFrameCount))+'px';

s.o.style.lineHeight = storm.flakeHeight+2+(storm.flakeHeight*0.75*(s.meltFrame/s.meltFrameCount))+'px';

} else {

s.recycle();

}

}

};

this.recycle = function() {

s.o.style.display = 'none';

s.o.style.position = (fixedForEverything?'fixed':'absolute');

s.o.style.bottom = 'auto';

s.setVelocities();

s.vCheck();

s.meltFrame = 0;

s.melting = false;

s.setOpacity(s.o,1);

s.o.style.padding = '0px';

s.o.style.margin = '0px';

s.o.style.fontSize = s.fontSize+'px';

s.o.style.lineHeight = (storm.flakeHeight+2)+'px';

s.o.style.textAlign = 'center';

s.o.style.verticalAlign = 'baseline';

s.x = parseInt(rnd(screenX-storm.flakeWidth-20),10);

s.y = parseInt(rnd(screenY)*-1,10)-storm.flakeHeight;

s.refresh();

s.o.style.display = 'block';

s.active = 1;

};

this.recycle(); // set up x/y coords etc.

this.refresh();

};

this.snow = function() {

var active = 0;

var used = 0;

var waiting = 0;

var flake = null;

for (var i=s.flakes.length; i--;) {

if (s.flakes[i].active == 1) {

s.flakes[i].move();

active++;

} else if (s.flakes[i].active === 0) {

used++;

} else {

waiting++;

}

if (s.flakes[i].melting) {

s.flakes[i].melt();

}

}

if (active<s.flakesMaxActive) {

flake = s.flakes[parseInt(rnd(s.flakes.length),10)];

if (flake.active === 0) {

flake.melting = true;

}

}

};

this.mouseMove = function(e) {

if (!s.followMouse) {

return true;

}

var x = parseInt(e.clientX,10);

if (x<screenX2) {

windOffset = -windMultiplier+(x/screenX2*windMultiplier);

} else {

x -= screenX2;

windOffset = (x/screenX2)*windMultiplier;

}

};

this.createSnow = function(limit,allowInactive) {

for (var i=0; i<limit; i++) {

s.flakes[s.flakes.length] = new s.SnowFlake(s,parseInt(rnd(flakeTypes),10));

if (allowInactive || i>s.flakesMaxActive) {

s.flakes[s.flakes.length-1].active = -1;

}

}

storm.targetElement.appendChild(docFrag);

};

this.timerInit = function() {

s.timers = (!isWin9X?[setInterval(s.snow,s.animationInterval)]:[setInterval(s.snow,s.animationInterval*3),setInterval(s.snow,s.animationInterval)]);

};

this.init = function() {

s.randomizeWind();

s.createSnow(s.flakesMax); // create initial batch

addEvent(window,'resize',s.resizeHandler);

addEvent(window,'scroll',s.scrollHandler);

if (!isOldIE) {

addEvent(window,'blur',s.freeze);

addEvent(window,'focus',s.resume);

}

s.resizeHandler();

s.scrollHandler();

if (s.followMouse) {

addEvent(document,'mousemove',s.mouseMove);

}

s.animationInterval = Math.max(20,s.animationInterval);

s.timerInit();

};

var didInit = false;

this.start = function(bFromOnLoad) {

if (!didInit) {

didInit = true;

} else if (bFromOnLoad) {

// already loaded and running

return true;

}

if (typeof s.targetElement == 'string') {

var targetID = s.targetElement;

s.targetElement = document.getElementById(targetID);

if (!s.targetElement) {

throw new Error('Snowstorm: Unable to get targetElement "'+targetID+'"');

}

}

if (!s.targetElement) {

s.targetElement = (!isIE?(document.documentElement?document.documentElement:document.body):document.body);

}

if (s.targetElement != document.documentElement && s.targetElement != document.body) {

s.resizeHandler = s.resizeHandlerAlt; // re-map handler to get element instead of screen dimensions

}

s.resizeHandler(); // get bounding box elements

s.usePositionFixed = (s.usePositionFixed && !noFixed); // whether or not position:fixed is supported

fixedForEverything = s.usePositionFixed;

if (screenX && screenY && !s.disabled) {

s.init();

s.active = true;

}

};

function doStart() {

s.start(true);

}
if (document.addEventListener) {
// safari 3.0.4 doesn't do DOMContentLoaded, maybe others - use a fallback to be safe.
document.addEventListener('DOMContentLoaded',doStart,false);

window.addEventListener('load',doStart,false);
} else {
addEvent(window,'load',doStart);
}
}
snowStorm = new SnowStorm();
//]]>
</script>

Y si todo ha salido bien, GUARDAMOS CAMBIOS, y tras esto, ya podemos disfrutar de una magnífica decoración navideña ;)

Muchos saludos a todos y ¡Feliz Navidad!