Nieve cayendo en el blog

Quedan muy pocos días para Navidad y en el tutorial de hoy, veremos cómo agregar un efecto de copos de nieve que caen en nuestro blog.

( ↪ Ver DEMO)

1.§ Vamos a Diseño - Añadir un gadget y elegimos HTML/Javascript.

2.§ Pegaremos el siguiente script:

<script type='text/javascript'>var fallObjects=new Array();function newObject(url,height,width){fallObjects[fallObjects.length]=new Array(url,height,width);} var numObjs=20, waft=50, fallSpeed=10, wind=0; newObject("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXOSMfn_bBT85RMSPtE00WXjvRi6AVQdzUA9b8uBVRIRSvxpi4Fm2gT-jE0C5S8g_cK_BLe43rFdn_0hjZ_gjlYgnr69joByKl1RCwoDFjZkTMGkbSj5o35MX-LbURt3AHwFDL_kLKDyrm/s400/nieve2_jessi_diyva.png",22,22); newObject("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjC4s8oyV7T2JsM95F2YYX6PB4ynxTM9j4Im4x4-lWD1c9TsrHgrEIyozboERcd0x24Hqif7-jb2S_UlvCnbM1USRyGzgW1fbFOwhjSspG7vNGHzRDhwx3-rZiLx8MAK84s98Q5qA9EcQVo/s400/nieve1_jessi_diyva.png",22,22); function winSize(){winWidth=(moz)?window.innerWidth-180:document.body.clientWidth-180;winHeight=(moz)?window.innerHeight+500:document.body.clientHeight+500;} function winOfy(){winOffset=(moz)?window.pageYOffset:document.body.scrollTop;} function fallObject(num,vari,nu){objects[num]=new Array(parseInt(Math.random()*(winWidth-waft)),-30,(parseInt(Math.random()*waft))*((Math.random()>0.5)?1:-1),0.02+Math.random()/20,0,1+parseInt(Math.random()*fallSpeed),vari,fallObjects[vari][1],fallObjects[vari][2]);if(nu==1){document.write('<img id="fO'+i+'" style="position:fixed;" src="'+fallObjects[vari][0]+'">'); }}function fall(){for(i=0;i<numObjs;i++){var fallingObject=document.getElementById('fO'+i);if((objects[i][1]>(winHeight-(objects[i][5]+objects[i][7])))||(objects[i][0]>(winWidth-(objects[i][2]+objects[i][8])))){fallObject(i,objects[i][6],0);}objects[i][0]+=wind;objects[i][1]+=objects[i][5];objects[i][4]+=objects[i][3]; with(fallingObject.style){ top=objects[i][1]+winOffset+'px';left=objects[i][0]+(objects[i][2]*Math.cos(objects[i][4]))+'px';}}setTimeout("fall()",31);}var objects=new Array(),winOffset=0,winHeight,winWidth,togvis,moz=(document.getElementById&&!document.all)?1:0;winSize();for (i=0;i<numObjs;i++){fallObject(i,parseInt(Math.random()*fallObjects.length),1);}fall();</script>
3.§ Finalmente, damos click en Guardar.