"width",width*0.5).attr("height",20)
		 .attr("fill","green").attr("opacity",.05).call(d3.drag().on("drag",dragged_u2).on("end",dragended_u2));

		 /*
		 
		 .on("mouseover",function(b,e){ //d,b
				var a=d3.select(".dtr."+b.cellnames); var c=+a.attr("cx"),d=+a.attr("cy");a=a.style("fill");
					d3.select("#tooltip").style("left",d3.event.pageX+25+"px").style("top",d3.event.pageY-95+"px").select("#value")
										 .html("Cell: <b>"+b.cellnames+"</b><br>Cluster: <b>"+b.cluster+"</b>");
					d3.select("#too