From 2a3a5d4b509e527d1871b6a993f49b29c734c268 Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Mon, 20 Feb 2017 20:13:42 +0900
Subject: wip

---
 src/web/app/common/scripts/contains.js | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 src/web/app/common/scripts/contains.js

(limited to 'src/web/app/common/scripts')

diff --git a/src/web/app/common/scripts/contains.js b/src/web/app/common/scripts/contains.js
new file mode 100644
index 0000000000..fe73666193
--- /dev/null
+++ b/src/web/app/common/scripts/contains.js
@@ -0,0 +1,8 @@
+module.exports = function(parent, child) {
+	let node = child.parentNode;
+	while (node) {
+		if (node == parent) return true;
+		node = node.parentNode;
+	}
+	return false;
+}
-- 
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