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HTML 

              
                <!--  This is a vain attempt at putting together something along the lines of Cary Huang's Scale of the Universe (Flash)
http://scaleofuniverse.com/  and Jerome Punzalan's Cosimic Scale (html/javascript/raphael)
https://cosmicscale.appspot.com/index.html 
I've used some parallax scrolling ideas and then used the .scrollTop() amount animate the circles
This started life as a fork of my previous parallax circles pen, but no one likes a fork so here it is in it's own right!
-->

<div id="holder"></div>

<div id="outerWrapper">

<div id="innerWrapper"></div>

</div>


<a href="#" id="zoomOut">Future</a>
<a href="#" id="zoomIn">Past</a>
!

CSS 

              
                body {
  margin: 10px 100px;
  padding: 10px;
}

#outerWrapper {
  margin-top: -600px;
  width: 610px;
  height: 600px;
  position: relative;
  /*border: 2px solid #131313;*/
  overflow-y: scroll;
  overflow-x: hidden;

}

#innerWrapper {
  position: absolute;
  top: 0px;
  width: 595px;
  height: 1300px;


 }

 #holder {
  position: relative;
  overflow: hidden;
  width: 595px;
  height: 600px;
  background: #121830;
  background-image: linear-gradient(bottom, rgb(6,82,163) 0%, rgb(18,24,48) 62%);
  background-image: -o-linear-gradient(bottom, rgb(6,82,163) 0%, rgb(18,24,48) 62%);
  background-image: -moz-linear-gradient(bottom, rgb(6,82,163) 0%, rgb(18,24,48) 62%);
  background-image: -webkit-linear-gradient(bottom, rgb(6,82,163) 0%, rgb(18,24,48) 62%);
  background-image: -ms-linear-gradient(bottom, rgb(6,82,163) 0%, rgb(18,24,48) 62%);
 }

 #zoomIn, #zoomOut {
   position: relative;
   top: 10px;
   border-top: 1px solid #96d1f8;
   background: #51a8d0;
   padding: 6px 11px 2.5px;
   -webkit-border-radius: 4px;
   -moz-border-radius: 4px;
   border-radius: 4px;
   -webkit-box-shadow: rgba(0,0,0,1) 0 1px 0;
   -moz-box-shadow: rgba(0,0,0,1) 0 1px 0;
   box-shadow: rgba(0,0,0,1) 0 1px 0;
   color: white;
   font-size: 14px;
   font-family: Helvetica, Arial, Sans-Serif;
   text-decoration: none;
   vertical-align: middle;
   -webkit-transition: 100ms linear;
   -moz-transition: 100ms linear;
   -o-transition: 100ms linear;
   -ms-transition: 100ms linear;
   transition: 100ms linear;
   }

 #zoomIn:hover, #zoomOut:hover {
   border-top-color: #28597a;
   background: #28597a;
   color: #ccc;
   }
!

JS 

              
                // First nominate the div to hold the Raphael svg
      var r = Raphael("holder", 595, 600),
  		// Then create some vars to centre the circles
			circX = $('#outerWrapper').width() / 2,
			circY = $('#outerWrapper').height() / 2,
			// Make a variable to store the amount that the outerwrapper has scrolled
			scrollAmount = 0,
			// This is the amount to push the text down by
			textOffset = 60;
			// Then make an array to hold all of the circle radii
			radii = [	-600,
						-500,
						-400,
						-300,
						-200,
						-100,
						0,
						100,
						200,
						300
						],
			circles = r.set(),			
			// Then make the cirles inside the set called 'circles'
			circles.push(
			circle10 = r.circle(circX, circY, radii[9]).attr({fill:"#FF0000"}),
			circle9 = r.circle(circX, circY, radii[8]).attr({fill:"#FF0000"}),
			circle8 = r.circle(circX, circY, radii[7]).attr({fill:"#FF0000"}),
			circle7 = r.circle(circX, circY, 0).attr({fill:"#FF7F00"}),
			circle6 = r.circle(circX, circY, 0).attr({fill:"#FF7F00"}),
			circle5 = r.circle(circX, circY, 0).attr({fill:"#FF7F00"}),
			circle4 = r.circle(circX, circY, 0).attr({fill:"#FFFF00"}),
			circle3 = r.circle(circX, circY, 0).attr({fill:"#FFFF00"}),
			circle2 = r.circle(circX, circY, 0).attr({fill:"#FFFF00"}),
			circle1 = r.circle(circX, circY, 0).attr({fill:"#00FF00"})
			).attr({'stroke-width':0, 'opacity':'.2' });
			// Let's start putting some text togther
			text = r.set(),
			text.push(
			txt10 = r.text(circX, (circY - (radii[9] - textOffset)), "2012").attr({ "font-size":"30" }),
			txt9 = r.text(circX, (circY - (radii[8] - textOffset)), "2011").attr({ "font-size":"20" }),
			txt8 = r.text(circX, (circY - (radii[7] - textOffset)), "2010").attr({ "font-size":"10", opacity:"0.505" }),
			txt7 = r.text(circX, (circY - (radii[6] - textOffset)), "2009").attr({ "font-size":"0" }),
			txt6 = r.text(circX, (circY - (radii[5] - textOffset)), "2008").attr({ "font-size":"0" }),
			txt5 = r.text(circX, (circY - (radii[4] - textOffset)), "2007").attr({ "font-size":"0" }),
			txt4 = r.text(circX, (circY - (radii[3] - textOffset)), "2006").attr({ "font-size":"0" }),
			txt3 = r.text(circX, (circY - (radii[2] - textOffset)), "2005").attr({ "font-size":"0" }),
			txt2 = r.text(circX, (circY - (radii[1] - textOffset)), "2004").attr({ "font-size":"0" })
			// txt1 = r.text(circX, (circY - (radii[0] - textOffset)), "October").attr({ "font-size":"0" })
			).attr({"font-family":"arial,helvetica,clean,sans-serif" , "fill":"#fff"});

			function moveCircles (x) {

				for (var i = 0; i < circles.length; i++) {
					// iterate through the circles in revers order
					p = (circles.length - 1) - i;
					// Only animate the visible circles
					if ( (x + radii[i]) <= 0 ) {
						circles[p].attr({r: 0 });
					} else if ( (x + radii[i]) >= 430 ) {
						circles[p].attr({r: 430 });
					} else {
						circles[p].animate({r: (x + radii[i]) });
					}

				};



				for (var i = 0; i < text.length; i++) {
					// iterate through the text in reverse order
					q = (radii.length - 1) - i;
					// Only animate the visible text
					if ( (circY - ((x + radii[q]) - textOffset)) <= -20 ) {
						text[i].attr({y: -20, "font-size": "38"});
					} else if ( (circY - ((x + radii[q]) - textOffset)) >= circY ) {
						text[i].attr({y: circY, "font-size": "0"});
					} else {
						text[i].animate({y: (circY - ((x + radii[q]) - textOffset)), 
							"font-size": (circles[i].attr('r') / 10 )
						});
					}

					if ( (circles[i].attr('r') / 200 ) <= 0.1 ) {
						text[i].attr({ opacity: 0 });
					} else if ( (circles[i].attr('r') / 200 ) >= 1 ) {
						text[i].attr({ opacity: 1 });
					} else {
						text[i].animate({ opacity: (circles[i].attr('r') / 200 )});
					}

				};
			}


			$('#outerWrapper').bind('scroll', function () {
				scrollAmount = $('#outerWrapper').scrollTop();
				moveCircles(scrollAmount);
			});

			$('#zoomIn').bind('click', function(e) {
				if ( scrollAmount < 700 ) {
				$('#outerWrapper').animate({scrollTop: (scrollAmount += 100 )}, 'slow');
				};
				e.preventDefault();
				return false;
			});

			$('#zoomOut').bind('click', function(e) {
				if ( scrollAmount > 0 ) {	
				$('#outerWrapper').animate({scrollTop: (scrollAmount -= 100 )}, 'slow');
				};
				e.preventDefault();
				return false;	
			});
!
999px

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