Update bpm2d.js

bpm2d.js

@@ -159,6 +159,7 @@
 		if (params.bpm=='') {
 			$('#bpmscaleh').hide();
 			$('#bpmscalev').hide();
+			$('#trajectoryWidth').hide();
 			$('#ruler').hide();
 			for (let facility in bpmData) {
 				if (typeof $('#'+facility+"_bpmhor").attr('visibility') != 'undefined') {
@@ -172,6 +173,7 @@
 		else {
 			$('#bpmscaleh').show();
 			$('#bpmscalev').show();
+			$('#trajectoryWidth').show();
 			$('#ruler').show();
 			const bpms = [];
 			for (let i in bpmData) if (i!="reader") bpms.push(i);