lunes, 6 de julio de 2015

Un fondo animado par el blog

¿No veis lo que hace este código? Fijaros en el fondo... BUENO PARA VERLO TENÉIS QUE SEGUIR LEYENDO.
Es bonito no.
No tener nada te da la posibilidad de conseguirlo todo...Tuitear ésto

<script type="text/javascript">
// <![CDATA[
var border=50; // Ancho de las barras
var effects=3; // Cantidad veces que se ejecuta el efecto
var speed=50; // Velocidad de la animación (un valor menor lo hará más rápido)
// Aquí abajo ponemos los códigos de los colores
var colours=new Array("#2F1925", "#F8E5DE", "#DCD796", "#F87501", "#9C0A55", "#6594B8", "#90C41A");

/*
1970s Groovy WebPage Effect
(c) 2008 mf2fm web-design
http://www.mf2fm.com/rv
DON'T EDIT BELOW THIS BOX
*/
var swide, shigh;
var h=new Array();
var v=new Array();
var op=1/(effects+1);
window.onload=function() { if (document.getElementById) {
var i, d, s, b;
b=document.createElement("div");
s=b.style;
s.position="absolute";
s.overflow="hidden";
s.zIndex="-1";
b.setAttribute("id", "bod");
i=document.body.style.backgroundColor;
if (document.body.parentNode) {
if (i) document.body.parentNode.style.backgroundColor=i;
document.body.style.backgroundColor="transparent";
}
document.body.appendChild(b);
set_width();
set_scroll();
for (i=0; i<effects*10; i+=10) {
d=document.createElement("div");
s=d.style;
s.width="100%";
h[i]=Math.floor(Math.random()*shigh/2.5);
h[i+1]=Math.floor(Math.random()*shigh/2.5);
h[i+2]=(Math.random()<0.5?-1:1)*(2+Math.floor(Math.random()*3));
h[i+3]=(Math.random()<0.5?-1:1)*(2+Math.floor(Math.random()*3));
s.top=h[i]+"px";
s.bottom=h[i+1]+"px";
s.position="absolute";
s.borderColor=jazz();
s.borderStyle="solid";
s.borderWidth=border+"px 0px";
s.backgroundColor=jazz();
if (navigator.appName=="Microsoft Internet Explorer") s.filter="alpha(opacity="+(100*op)+")";
else s.opacity=op;
h[i+5]=s;
b.appendChild(d);
}
for (i=0; i<effects*10; i+=10) {
d=document.createElement("div");
s=d.style;
s.height="100%";
v[i]=Math.floor(Math.random()*swide/2.5);
v[i+1]=Math.floor(Math.random()*swide/2.5);
v[i+2]=(Math.random()<0.5?-1:1)*(2+Math.floor(Math.random()*3));
v[i+3]=(Math.random()<0.5?-1:1)*(2+Math.floor(Math.random()*3));
s.left=v[i]+"px";
s.right=v[i+1]+"px";
s.position="absolute";
s.borderColor=jazz();
s.borderStyle="solid";
s.borderWidth="0px "+border+"px";
s.backgroundColor=jazz();
if (navigator.appName=="Microsoft Internet Explorer") s.filter="alpha(opacity="+(100*op)+")";
else s.opacity=op;
v[i+5]=s;
b.appendChild(d);
}
groovy();
}}

var old_jazz=false;
function jazz() {
var new_jazz;
do { new_jazz=colours[Math.floor(Math.random()*colours.length)]; }
while ( new_jazz==old_jazz );
old_jazz=new_jazz;
return (new_jazz);
}

function scat(no) {
var yes;
no=no*Math.abs(no);
do { yes=2+Math.floor(Math.random()*3); }
while ( no==yes );
return (yes);
}

function groovy() {
setTimeout("groovy()", speed);
var i;
for (i=0; i<effects*10; i+=10) {
h[i]+=h[i+2];
h[i+1]+=h[i+3];
if (h[i]+h[i+1]>shigh-border*2) {
h[i+4]=h[i+2];
h[i+2]=-h[i+3];
h[i+3]=-h[i+4];
h[i+5].backgroundColor=jazz();
}
if (h[i]<-border && Math.random()<1/border) {
h[i+2]=scat(h[i+3]);
if (h[i+1]>shigh) h[i+5].borderColor=jazz();
}
else if (h[i]>shigh && Math.random()<1/border) {
h[i+2]=-scat(h[i+3]);
}
if (h[i+1]<-border && Math.random()<1/border) {
h[i+3]=scat(h[i+2]);
if (h[i]>shigh) h[i+5].borderColor=jazz();
}
else if (h[i+1]>shigh && Math.random()<1/border) {
h[i+3]=-scat(h[i+2]);
}
h[i+5].top=h[i]+"px";
h[i+5].bottom=h[i+1]+"px";
}
for (i=0; i<effects*10; i+=10) {
v[i]+=v[i+2];
v[i+1]+=v[i+3];
if (v[i]+v[i+1]>swide-border*2) {
v[i+4]=v[i+2];
v[i+2]=-v[i+3];
v[i+3]=-v[i+4];
v[i+5].backgroundColor=jazz();
}
if (v[i]<-border && Math.random()<1/border) {
v[i+2]=scat(v[i+3]);
if (v[i+1]>swide) v[i+5].borderColor=jazz();
}
else if (v[i]>swide && Math.random()<1/border) {
v[i+2]=-scat(v[i+3]);
}
if (v[i+1]<-border && Math.random()<1/border) {
v[i+3]=scat(v[i+2]);
if (v[i]>swide) v[i+5].borderColor=jazz();
}
else if (v[i+1]>swide && Math.random()<1/border) {
v[i+3]=-scat(v[i+2]);
}
v[i+5].left=v[i]+"px";
v[i+5].right=v[i+1]+"px";
}
}

window.onresize=set_width;
function set_width() {
if (typeof(self.innerWidth)=="number") {
swide=self.innerWidth-18;
shigh=self.innerHeight-18;
}
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;
}
else {
swide=800;
shigh=600;
}
var s=document.getElementById("bod").style;
s.width=swide+"px";
s.height=shigh+"px";
}

window.onscroll=set_scroll;
function set_scroll() {
var sleft, sdown;
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;
}
var s=document.getElementById("bod").style;
s.top=sdown+"px";
s.left=sleft+"px";
}
// ]]>
</script>

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