add toolbar button to jump back if following relative URL

1 files changed, 8 insertions, 0 deletions

diff --git a/js/read.js b/js/read.js
index 6d81cb5..779a112 100644
--- a/js/read.js
+++ b/js/read.js
@@ -314,4 +314,12 @@ function dict_lookup(word, callback) {
 	});
 }
 
+function open_previous_location(elem) {
+	var cfi = $(elem).attr("data-location-cfi");
 
+	if (cfi) {
+		window.book.rendition.display(cfi);
+	}
+
+	$(elem).fadeOut();
+}