var data = [[5,3], [10,17], [15,4], [2,8]];
   
    var margin = {top: 20, right: 15, bottom: 60, left: 60}
      , width = 960 - margin.left - margin.right
      , height = 500 - margin.top - margin.bottom;
    
    var x = d3.scale.linear()
              .domain([0, d3.max(data, function(d) { return d[0]; })])
              .range([ 0, width ]);
    
    var y = d3.scale.linear()
    	      .domain([0, d3.max(data, function(d) { return d[1]; })])
    	      .range([ height, 0 ]);
 
    var chart = d3.select('body')
	.append('svg:svg')
	.attr('width', width + margin.right + margin.left)
	.attr('height', height + margin.top + margin.bottom)
	.attr('class', 'chart')

    var main = chart.append('g')
	.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
	.attr('width', width)
	.attr('height', height)
	.attr('class', 'main')   
        
    var g = main.append("svg:g"); 
    
    g.selectAll("scatter-dots")
      .data(data)
      .enter().append("svg:circle")
          .attr("cx", function (d,i) { return x(d[0]); } )
          .attr("cy", function (d) { return y(d[1]); } )
          .attr("r", 8);