Quiero crear un blog | Tutoriales, gadgets, trucos y SEO para Blogger: diciembre 2009

Todos los que empleábais este formulario de contacto os habréis dado cuenta que ha dejado de funcionar. No os preocupéis porque en los comentarios de esa entrada está explicado cómo solucionarlo.

De todas formas os voy a explicar cómo poner un nuevo formulario de contacto para vuestro blogspot mediante unas tablas con código HTML. Aunque bajo mi opinión, éste formulario es más molesto y menos vistoso que los otros que ya he explicado anteriomente.

1) Vamos a Diseño
2) Elementos de página
3) Añadir un gadget
4) HTML/Javascript. En él pegamos el siguiente código:

Código a copiar/pegar<form enctype="text/plain" action="mailto:tucorreo@correo.com" method="post"><table border="0" cellspacing="0" cellpadding="4" width="90%"><tr><td width="30%"><div align="right"><b>Nombre:</b></div></td><td width="70%"><input name="name" size="20" type="text"/></td></tr><tr><td><div align="right"><b>Email:</b></div></td><td><input name="email" size="20" type="text"/></td></tr><tr><td><div align="right"><b>Tu blog:</b></div></td><td><input name="url" size="20" type="text"/></td></tr><tr><td><div align="right"><b>Comentario:</b></div></td><td><textarea rows="8" cols="40" name="comment" wrap="virtual"></textarea></td></tr><tr><td> </td><td><input value="Enviar" name="submit" type="submit"/><input value="Borrar" name="reset" type="reset"/></td></tr></table></form>

Tan sólo debes cambiar tucorreo@correo.com por tu dirección de correo en la que deseees recibir la toma de contacto con los visitantes de tu blog.

Para agrandar o reducir el recuadro para el comentario debes jugar con las cifras que he marcado en color azul.

Éste será el resultado:

Al clicar en Enviar aparecerás en tu cliente habitual de correo para revisar los datos que has puesto y finalmente proceder al envío del e-mail. Algo engorroso, pero es una alternativa más al los otros formularios que ya expliqué. Espero que sea de tu agrado.

Si tu blog tiene mucho tráfico y recibes muchos correos con spam, quizá te convenga emplear este otro formulario de contacto anti-spam para blogger.

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Copos de nieve que llegan hasta abajo de tu blog

Muchos ya habéis colocado en vuestro blog copos de nieve para decorarlo ante la llegada de la navidad, el problema es que ese script hacia imposible que los copos de nieve llegaran hasta abajo de la página. Gracias a Rosa y a Schillmania ahora es posible que los copos de nieve lleguen hasta abajo del todo del blog.

Para instalar estos nuevos copos de nieve en vuestro blogspot haremos los siguiente:

1) Vamos a Diseño
2) Edición de HTML
3) Buscamos </head> (tecleamos Ctrl + F para buscar más rápido)
4) Antes de </head> pegamos el siguiente código:

[+/-] Código a copiar

<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>

5) Clicamos en vista previa y si todo está bien, guardamos la plantilla. Cuando deseees retiras los copos de nieve de tu blog, busca este código y elíminalo de principio a fin y... ¡hasta la navidad que viene!

El resultado lo puedes ver en este mismo blog.

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