diff --git a/lib/mergely.js b/lib/mergely.js
index af35d56..56ff7ec 100644
--- a/lib/mergely.js
+++ b/lib/mergely.js
@@ -391,7 +391,7 @@ jQuery.extend(Mgly.CodeMirrorDiffView.prototype, {
 			resize_timeout: 500,
 			change_timeout: 150,
 			fgcolor: {a:'#4ba3fa',c:'#a3a3a3',d:'#ff7f7f',  // color for differences (soft color)
-				ca:'#4b73ff',cc:'#737373',cd:'#ff4f4f'},    // color for currently active difference (bright color)
+				ca:'#4b73ff',cc:'#434343',cd:'#ff4f4f'},    // color for currently active difference (bright color)
 			bgcolor: '#eee',
 			vpcolor: 'rgba(0, 0, 200, 0.5)',
 			lhs: function(setValue) { },
@@ -691,7 +691,7 @@ jQuery.extend(Mgly.CodeMirrorDiffView.prototype, {
 
 		// kljh: register WinMerge style key bindings
 		var self = this;
-		document.body.addEventListener("keydown", function(evt) {
+		document.getElementById(this.id).addEventListener("keydown", function(evt) {
 			if (evt.defaultPrevented) {
 				//return;    // Should do nothing if the key event was already consumed.
 				//console.warn("Should do nothing if the key event was already consumed.");