init.js

var o = {
	init: function(){
		this.diagram();
	},
	random: function(l, u){
		return Math.floor((Math.random()*(u-l+1))+l);
	},
	diagram: function(){
		var r = Raphael('diagram', 600, 600),
			rad = 73,
			defaultText = 'Skills',
			speed = 250;

		r.circle(300, 300, 85).attr({ stroke: 'none', fill: '#193340' });

		var title = r.text(300, 300, defaultText).attr({
			font: '20px Arial',
			fill: '#fff'
		}).toFront();

		r.customAttributes.arc = function(value, color, rad){
			var v = 3.6*value,
			  alpha = v == 360 ? 359.99 : v,
			  random = o.random(91, 240),
			  a = (random-alpha) * Math.PI/180,
			  b = random * Math.PI/180,
			  sx = 300 + rad * Math.cos(b),
			  sy = 300 - rad * Math.sin(b),
			  x = 300 + rad * Math.cos(a),
			  y = 300 - rad * Math.sin(a),
			  path = [['M', sx, sy], ['A', rad, rad, 0, +(alpha > 180), 1, x, y]];
			return { path: path, stroke: color }

		}
		$('.get').find('.arc').each(function(i){
			var t = $(this),
			  color = t.find('.color').val(),
			  value = t.find('.percent').val(),
			  text = t.find('.text').text();

			rad += 30;
			var z = r.path().attr({ arc: [value, color, rad], 'stroke-width': 26 });
			z.mouseover(function(){
			  this.animate({ 'stroke-width': 50, opacity: .75 }, 1000, 'elastic');
			  if(Raphael.type != 'VML') //solves IE problem
			    this.toFront();
			  title.stop().animate({ opacity: 0 }, speed, '>', function(){
			    this.attr({ text: text + '\n' + value + '%' }).animate({ opacity: 1 }, speed, '<');
			  });
			}).mouseout(function(){
			  this.stop().animate({ 'stroke-width': 26, opacity: 1 }, speed*4, 'elastic');
			  title.stop().animate({ opacity: 0 }, speed, '>', function(){
			    title.attr({ text: defaultText }).animate({ opacity: 1 }, speed, '<');
			  });
			});
		});

	}



}
$(function(){ o.init(); });