<script type="text/javascript" src="https://sites.google.com/site/unwanted86/javascript/bubblecursor.js"></script>Ganti warna bubble sesuai keinginan
<script type="text/javascript">
function bubble(){var e;if(x!=ox||y!=oy){ox=x;oy=y;for(e=0;e<bubbles;e++)if(!bubby[e]){bubb[e].left=(bubbx[e]=x)+"px";bubb[e].top=(bubby[e]=y)+"px";bubb[e].width="3px";bubb[e].height="3px";bubb[e].visibility="visible";bubbs[e]=3;break}}for(e=0;e<bubbles;e++)if(bubby[e])update_bubb(e);setTimeout("bubble()",40)}function update_bubb(e){if(bubby[e]){bubby[e]-=bubbs[e]/2+e%2;bubbx[e]+=(e%5-2)/5;if(bubby[e]>sdown&&bubbx[e]>0){if(Math.random()<bubbs[e]/shigh*2&&bubbs[e]++<8){bubb[e].width=bubbs[e]+"px";bubb[e].height=bubbs[e]+"px"}bubb[e].top=bubby[e]+"px";bubb[e].left=bubbx[e]+"px"}else{bubb[e].visibility="hidden";bubby[e]=0;return}}}function mouse(e){set_scroll();y=e?e.pageY:event.y+sleft;x=e?e.pageX:event.x+sdown}function set_width(){if(document.documentElement&&document.documentElement.clientWidth){swide=document.documentElement.clientWidth;shigh=document.documentElement.clientHeight}else if(typeof self.innerHeight=="number"){swide=self.innerWidth;shigh=self.innerHeight}else if(document.body.clientWidth){swide=document.body.clientWidth;shigh=document.body.clientHeight}else{swide=800;shigh=600}}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}}function createDiv(e,t){var n=document.createElement("div");n.style.position="absolute";n.style.height=e;n.style.width=t;n.style.overflow="hidden";return n}var colours=new Array("#E0FF2E","#FF9D2E","#6EFA28","#28CCFA","#FF528B");var bubbles=100;var x=ox=400;var y=oy=300;var swide=800;var shigh=600;var sleft=sdown=0;var bubb=new Array;var bubbx=new Array;var bubby=new Array;var bubbs=new Array;window.onload=function(){if(document.getElementById){var e,t;for(var n=0;n<bubbles;n++){e=createDiv("3px","3px");e.style.visibility="hidden";t=createDiv("auto","auto");e.appendChild(t);t=t.style;t.top="1px";t.left="0px";t.bottom="1px";t.right="0px";t.borderLeft="1px solid "+colours[3];t.borderRight="1px solid "+colours[1];t=createDiv("auto","auto");e.appendChild(t);t=t.style;t.top="0px";t.left="1px";t.right="1px";t.bottom="0px";t.borderTop="1px solid "+colours[0];t.borderBottom="1px solid "+colours[2];t=createDiv("auto","auto");e.appendChild(t);t=t.style;t.left="1px";t.right="1px";t.bottom="1px";t.top="1px";t.backgroundColor=colours[4];t.opacity=.5;if(document.all)t.filter="alpha(opacity=50)";document.body.appendChild(e);bubb[n]=e.style}set_scroll();set_width();bubble()}};document.onmousemove=mouse;window.onresize=set_width;window.onscroll=set_scroll
</script>
Kemudian save!!
Demikian Cara membuat efek bubble kursor pada blog.