width", wbar)
	.attr("height", hbar);

    // background
    bargraph.append("rect")
  	.attr("x", marginbar.left)
  	.attr("y", marginbar.top)
  	.attr("width", innerWbar)
  	.attr("height", innerHbar)
  	.attr("class", "background axis");
    // x Axis
    bargraph.append("g")
	.attr("transform","translate("+marginbar.left+","+(hbar-marginbar.bottom)+")")
	.attr("class", "axis")
	.call(xbAxis);
    // x axis title
    bargraph.append("text")
	.attr("class", "axisTitle")
	.attr("x", wbar/2)
	.attr("y", hba