Cursor con destellos en blogger

Anteriormente hemos visto como cambiar el cursor en Blogger, ahora les presento un scipt para que al mover el cursor se generen pequeños destellos. (Puedes mover el cursor en una parte oscura del blog y ver como funciona) 
Para agregar este efecto al cursor es muy sencillo, sólo debes copiar el siguiente código y pegarlo en tu blog: 

<script type='text/javascript'>// <![CDATA[var colour="#FFFFFF";var sparkles=40;
var x=ox=400;var y=oy=300;var swide=800;var shigh=600;var sleft=sdown=0;var tiny=new Array();var star=new Array();var starv=new Array();var starx=new Array();var stary=new Array();var tinyx=new Array();var tinyy=new Array();var tinyv=new Array();window.onload=function() { if (document.getElementById) {var i, rats, rlef, rdow;for (var i=0; i<sparkles; i++) {var rats=createDiv(3, 3);rats.style.visibility="hidden";document.body.appendChild(tiny[i]=rats);starv[i]=0;tinyv[i]=0;var rats=createDiv(5, 5);rats.style.backgroundColor="transparent";rats.style.visibility="hidden";var rlef=createDiv(1, 5);var rdow=createDiv(5, 1);rats.appendChild(rlef);rats.appendChild(rdow);rlef.style.top="2px";rlef.style.left="0px";rdow.style.top="0px";rdow.style.left="2px";document.body.appendChild(star[i]=rats);}set_width();sparkle();}}function sparkle() {var c;if (x!=ox || y!=oy) {ox=x;oy=y;for (c=0; c<sparkles; c++) if (!starv[c]) {star[c].style.left=(starx[c]=x)+"px";star[c].style.top=(stary[c]=y)+"px";star[c].style.clip="rect(0px, 5px, 5px, 0px)";star[c].style.visibility="visible";starv[c]=50;break;}}for (c=0; c<sparkles; c++) {if (starv[c]) update_star(c);if (tinyv[c]) update_tiny(c);}setTimeout("sparkle()", 40);}function update_star(i) {if (--starv[i]==25) star[i].style.clip="rect(1px, 4px, 4px, 1px)";if (starv[i]) {stary[i]+=1+Math.random()*3;if (stary[i]<shigh+sdown) {star[i].style.top=stary[i]+"px";starx[i]+=(i%5-2)/5;star[i].style.left=starx[i]+"px";}else {star[i].style.visibility="hidden";starv[i]=0;return;}}else {tinyv[i]=50;tiny[i].style.top=(tinyy[i]=stary[i])+"px";tiny[i].style.left=(tinyx[i]=starx[i])+"px";tiny[i].style.width="2px";tiny[i].style.height="2px";star[i].style.visibility="hidden";tiny[i].style.visibility="visible"}}function update_tiny(i) {if (--tinyv[i]==25) {tiny[i].style.width="1px";tiny[i].style.height="1px";}if (tinyv[i]) {tinyy[i]+=1+Math.random()*3;if (tinyy[i]<shigh+sdown) {tiny[i].style.top=tinyy[i]+"px";tinyx[i]+=(i%5-2)/5;tiny[i].style.left=tinyx[i]+"px";}else {tiny[i].style.visibility="hidden";tinyv[i]=0;return;}}else tiny[i].style.visibility="hidden";}document.onmousemove=mouse;function mouse(e) {set_scroll();y=(e)?e.pageY:event.y+sdown;x=(e)?e.pageX:event.x+sleft;}function set_scroll() {if (typeof(self.pageYOffset)=="number") {sdown=self.pageYOffset;sleft=self.pageXOffset;}else if (document.body.scrollTop || document.body.scrollLeft) {sdown=document.body.scrollTop;sleft=document.body.scrollLeft;}else if (document.documentElement && (document.documentElement.scrollTop || document.documentElement.scrollLeft)) {sleft=document.documentElement.scrollLeft;sdown=document.documentElement.scrollTop;}else {sdown=0;sleft=0;}}window.onresize=set_width;function set_width() {if (typeof(self.innerWidth)=="number") {swide=self.innerWidth;shigh=self.innerHeight;}else if (document.documentElement && document.documentElement.clientWidth) {swide=document.documentElement.clientWidth;shigh=document.documentElement.clientHeight;}else if (document.body.clientWidth) {swide=document.body.clientWidth;shigh=document.body.clientHeight;}}function createDiv(height, width) {var div=document.createElement("div");div.style.position="absolute";div.style.height=height+"px";div.style.width=width+"px";div.style.overflow="hidden";div.style.backgroundColor=colour;return (div);}// ]]></script>

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El código va pegado en diseño > añadir gadgets > Html/JavaSript. 

domingo, 6 de marzo de 2011