Use jquery

diff --git a/app/assets/javascripts/user.js b/app/assets/javascripts/user.js
index 40ca866c52d65ab7dca633b55a383780ea4186d8..3803e180f1dc4acfda664a9892a8b40e8007a58f 100644 (file)
--- a/app/assets/javascripts/user.js
+++ b/app/assets/javascripts/user.js
@@ -126,7 +126,6 @@ $(document).ready(function () {
   });
 
   $("#read_tou").on("click", function () { 
-    var agreebtn = document.getElementById('agree');
-    agreebtn.disabled=!this.checked;
+    $("#agree").prop("disabled", !$(this).prop("checked"));
   });
 });