(function($){$.fn.stringball=function(options){var defaults={camd:1000,radi:250,speed:40,framerate:30};var options = $.extend(defaults, options);var target=$(this);var elem=$("li" ,target);var scrz=500;var radi=options.radi;var camd=options.camd;var speed=options.speed;var frn=Math.floor(1000/options.framerate);var elemLength=elem.length;var xs=[];var ys=[];var zs=[];var fw=[];var fh=[];var ac=0;var as=0;var roteang=0;var looptimer=0;var itxpos = target.offset().left;var itw = target.width();var itypos=target.offset().top;var ith=target.height();function setini(){var anga=0;var angb=0;for(i=0;i<elemLength;i++){anga= Math.acos((2 * (i + 1) - 1) / elem.length - 1);angb= Math.sqrt(elem.length * Math.PI) * anga;fw[i]=$(elem[i]).width()/2;fh[i]=$(elem[i]).height()/2;xs[i]=radi*Math.cos(angb)*Math.sin(anga);ys[i]=radi*Math.cos(anga);zs[i]=radi*Math.sin(angb)*Math.sin(anga);}}function setpos(){var rotec=Math.cos(roteang);var rotes=Math.sin(roteang);for(i=0;i<elemLength;i++){var xpos=xs[i]*(ac*ac*(1-rotec)+rotec)+ys[i]*(ac*as*(1-rotec))-zs[i]*(as*rotes);var ypos=xs[i]*(ac*as*(1-rotec))+ys[i]*(as*as*(1-rotec)+rotec)+zs[i]*(ac*rotes);var zpos=xs[i]*as*rotes-ys[i]*ac*rotes+zs[i]*rotec;xs[i]=xpos;ys[i]=ypos;zs[i]=zpos;var scale=scrz/(camd-zpos);var myx=xpos*scale+(itw>>1)-fw[i] | 0;var myy=ypos*scale+(ith>>1)-fh[i] | 0;var myscale=scale*100 | 0 ;elem[i].style.left=myx+"px";elem[i].style.top=myy+"px";elem[i].style.fontSize=myscale+"%";elem[i].style.opacity=scale;}return false;}setini();setpos();target.hover(function(){clearInterval(looptimer);looptimer=setInterval(setpos,frn);},function(){clearInterval(looptimer);});target.mousemove(function(e){var accx = (e.pageX-itxpos-(itw>>1))/itw;var accy = (e.pageY-itypos-(ith>>1))/ith;roteang=(Math.max(Math.abs(accx),Math.abs(accy)))/100*speed;var axang=Math.PI/2+Math.atan2(accy,accx);ac=Math.cos(axang);as=Math.sin(axang);});}})(jQuery);