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Burbuja Loca

Este código crea el efecto de que salen del ratón burbujas flotantes.

Ejemplo:

Lo puedes ver aquí.

Pégalo como html donde quieras en vista normal.
<script language="JavaScript"> <!-- Under Water Mouse Script by kurt.grigg@virgin.net Image0=new Image(); Image0.src="images/burbuja.gif"; Amount=20; Ymouse=-50; Xmouse=-50; Ypos=new Array(); Xpos=new Array(); Speed=new Array(); rate=new Array(); grow=new Array(); Step=new Array(); Cstep=new Array(); nsSize=new Array(); ns=(document.layers)?1:0; WinHeight=(document.layers)?window.innerHeight:window.document.body.clientHeight; (document.layers)?window.captureEvents(Event.MOUSEMOVE):0; function Mouse(evnt){ Ymouse=(document.layers)?evnt.pageY-20:event.y-20; Xmouse=(document.layers)?evnt.pageX:event.x; } (document.layers)?window.onMouseMove=Mouse:document.onmousemove=Mouse; for (i=0; i < Amount; i++){ Ypos[i]=Math.random()*WinHeight-Ymouse; Xpos[i]=Xmouse; Speed[i]=Math.random()*10+1; Cstep[i]=0; Step[i]=Math.random()*0.1+0.05; grow[i]=4; nsSize[i]=Math.random()*15+5; rate[i]=Math.random()*0.5+0.1; } if (ns){ for (i = 0; i < Amount; i++){ document.write("<LAYER NAME='sn"+i+"' LEFT=0 TOP=0><img src="+Image0.src+" name='N' width="+nsSize[i]+" height="+nsSize[i]+"></LAYER>"); } } else{ document.write('<div style="position:absolute;top:0px;left:0px"><div style="position:relative">'); for (i = 0; i < Amount; i++){ document.write('<img id="si" src="'+Image0.src+'" style="position:absolute;top:0px;left:0px;filter:alpha(opacity=90)">'); } document.write('</div></div>'); } function MouseBubbles(){ var hscrll=(document.layers)?window.pageYOffset:document.body.scrollTop; var wscrll=(document.layers)?window.pageXOffset:document.body.scrollLeft; for (i=0; i < Amount; i++){ sy = Speed[i]*Math.sin(270*Math.PI/180); sx = Speed[i]*Math.cos(Cstep[i]*5); Ypos[i]+=sy; Xpos[i]+=sx; if (Ypos[i] < -40){ Ypos[i]=Ymouse; Xpos[i]=Xmouse; Speed[i]= 6+Math.random()*3; grow[i]=4; nsSize[i]=Math.random()*15+5; } if (ns){ document.layers['sn'+i].left=Xpos[i]+wscrll; document.layers['sn'+i].top=Ypos[i]+hscrll; } else{ si[i].style.pixelLeft=Xpos[i]+wscrll; si[i].style.pixelTop=Ypos[i]+hscrll; si[i].style.width=grow[i]; si[i].style.height=grow[i]; } grow[i]+=rate[i]; Cstep[i]+=Step[i]; if (grow[i] > 24) grow[i]=25; } setTimeout('MouseBubbles()',10); } MouseBubbles(); //--> </script>
 Cambia la imagen por la que tu quieras y el tamaño, o puedes bajarte esta que tenemos de ejemplo.