1 files changed, 6 insertions, 0 deletions
diff --git a/js/matrix.js b/js/matrix.js
index ccd90b2..98c132d 100644
--- a/js/matrix.js
+++ b/js/matrix.js
@@ -45,6 +45,12 @@ Matrix.prototype.forEach = function(f){
 	})
 }
 Matrix.prototype.focusLex = function(y,x){
+	if (x < 0) {
+		y -= 1
+	}
+	if (x > this.aa[0].length) {
+		y += 1
+	}
 	this.aa[mod(y,this.h)][mod(x,this.w)].focus()
 }
 Matrix.prototype.clear = function(){