Underwater Bubble Cursor Javascript :: RV's free DHTML effects

UNDERWATER CURSOR EFFECT

This script has been tested on and shown to work with the following browsers: Internet Explorer version 6 and above Google Chrome version 1 and above Mozilla Firefox version 2 and above Apple Safari version 5 and above Opera version 7 and above (including Opera mobile) Android Browser version 2 and above

29-May-2013:Bubbles can float on top or underneath other things on the page. 11-Aug-2012: Extra bubbles made to appear when you hold the mouse key down. 17-May-2012: Minor performance improvements. 26-Oct-2010: First release.
STEP 1: Copy and paste the code below so that it sits between the <head> and </head> tags at the top of your web-page: <script type="text/javascript"> // <![CDATA[ var colours=new Array("#a6f", "#60f", "#60f", "#a6f", "#ccc"); // colours for top, right, bottom and left borders and background of bubbles var bubbles=66; // maximum number of bubbles on screen var over_or_under="over"; // set to "over" for bubbles to always be on top, or "under" to allow them to float behind other objects /**************************** * JavaScript Bubble Cursor * (c)2010-13 mf2fm web-design * http://www.mf2fm.com/rv * * DON'T EDIT BELOW THIS BOX * ***************************/ 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(); var sploosh=false; function addLoadEvent(funky) { var oldonload=window.onload; if (typeof(oldonload)!='function') window.onload=funky; else window.onload=function() { if (oldonload) oldonload(); funky(); } } addLoadEvent(buble); function buble() { if (document.getElementById) { var i, rats, div; for (i=0; i<bubbles; i++) { rats=createDiv("3px", "3px"); rats.style.visibility="hidden"; rats.style.zIndex=(over_or_under=="over")?"1001":"0"; div=createDiv("auto", "auto"); rats.appendChild(div); div=div.style; div.top="1px"; div.left="0px"; div.bottom="1px"; div.right="0px"; div.borderLeft="1px solid "+colours[3]; div.borderRight="1px solid "+colours[1]; div=createDiv("auto", "auto"); rats.appendChild(div); div=div.style; div.top="0px"; div.left="1px"; div.right="1px"; div.bottom="0px" div.borderTop="1px solid "+colours[0]; div.borderBottom="1px solid "+colours[2]; div=createDiv("auto", "auto"); rats.appendChild(div); div=div.style; div.left="1px"; div.right="1px"; div.bottom="1px"; div.top="1px"; div.backgroundColor=colours[4]; if (navigator.appName=="Microsoft Internet Explorer") div.filter="alpha(opacity=50)"; else div.opacity=0.5; document.body.appendChild(rats); bubb[i]=rats.style; } set_scroll(); set_width(); bubble(); }} function bubble() { var c; if (Math.abs(x-ox)>1 \|\| Math.abs(y-oy)>1) { ox=x; oy=y; for (c=0; c<bubbles; c++) if (!bubby[c]) { bubb[c].left=(bubbx[c]=x)+"px"; bubb[c].top=(bubby[c]=y-3)+"px"; bubb[c].width="3px"; bubb[c].height="3px" bubb[c].visibility="visible"; bubbs[c]=3; break; } } for (c=0; c<bubbles; c++) if (bubby[c]) update_bubb(c); setTimeout("bubble()", 40); } document.onmousedown=splash; document.onmouseup=function(){clearTimeout(sploosh);}; function splash() { ox=-1; oy=-1; sploosh=setTimeout('splash()', 100); } function update_bubb(i) { if (bubby[i]) { bubby[i]-=bubbs[i]/2+i%2; bubbx[i]+=(i%5-2)/5; if (bubby[i]>sdown && bubbx[i]>sleft && bubbx[i]<sleft+swide+bubbs[i]) { if (Math.random()<bubbs[i]/shigh2 && bubbs[i]++<8) { bubb[i].width=bubbs[i]+"px"; bubb[i].height=bubbs[i]+"px"; } bubb[i].top=bubby[i]+"px"; bubb[i].left=bubbx[i]+"px"; } else { bubb[i].visibility="hidden"; bubby[i]=0; return; } } } document.onmousemove=mouse; function mouse(e) { if (e) { y=e.pageY; x=e.pageX; } else { set_scroll(); y=event.y+sdown; x=event.x+sleft; } } window.onresize=set_width; function set_width() { var sw_min=999999; var sh_min=999999; if (document.documentElement && document.documentElement.clientWidth) { if (document.documentElement.clientWidth>0) sw_min=document.documentElement.clientWidth; if (document.documentElement.clientHeight>0) sh_min=document.documentElement.clientHeight; } if (typeof(self.innerWidth)=='number' && self.innerWidth) { if (self.innerWidth>0 && self.innerWidth<sw_min) sw_min=self.innerWidth; if (self.innerHeight>0 && self.innerHeight<sh_min) sh_min=self.innerHeight; } if (document.body.clientWidth) { if (document.body.clientWidth>0 && document.body.clientWidth<sw_min) sw_min=document.body.clientWidth; if (document.body.clientHeight>0 && document.body.clientHeight<sh_min) sh_min=document.body.clientHeight; } if (sw_min==999999 \|\| sh_min==999999) { sw_min=800; sh_min=600; } swide=sw_min; shigh=sh_min; } window.onscroll=set_scroll; function set_scroll() { if (typeof(self.pageYOffset)=='number') { sdown=self.pageYOffset; sleft=self.pageXOffset; } else if (document.body && (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(height, width) { var div=document.createElement("div"); div.style.position="absolute"; div.style.height=height; div.style.width=width; div.style.overflow="hidden"; div.style.backgroundColor="transparent"; return (div); } // ]]> </script> CLICK HERE to select the above script ready to paste it into your clipboard
STEP 2: If you want to change the colours of the borders of the bubbles or the background, change the colours at the start of the script you just copied to the settings you require.
THAT'S IT When your page loads your cursor will be swimming along underwater producing bubbles as it does so: glub, glub, glub! Also, if you hold the mouse button down, more bubbles appear.

Copyright notice: All scripts are © copyright mf2fm.com. You can use them wherever and whenever you wish, however the copyright notice at the start of the script should remain intact and a link back to this page would be appreciated. The address for this page is: http://www.mf2fm.com/rv/dhtmlbubblecursor.php.

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