diff --git a/public/js/wn/upload.js b/public/js/wn/upload.js
index 0a909ab895..b131b2c72d 100644
--- a/public/js/wn/upload.js
+++ b/public/js/wn/upload.js
@@ -9,7 +9,9 @@ wn.upload = {
 				'+wn._('Upload a file')+':<br>\
 				<input type="file" name="filedata" /><br><br>\
 				OR:<br><input type="text" name="file_url" /><br>\
-				<p class="help">e.g. http://example.com/somefile.png</p><br>\
+				<p class="help">'
+				+ (opts.sample_url || 'e.g. http://example.com/somefile.png') 
+				+ '</p><br>\
 				<input type="submit" class="btn" value="'+wn._('Attach')+'" />\
 			</form>', {
 				id: id,
diff --git a/webnotes/sessions.py b/webnotes/sessions.py
index e36f4b426e..1fe3bfc0ac 100644
--- a/webnotes/sessions.py
+++ b/webnotes/sessions.py
@@ -30,6 +30,7 @@ permission, homepage, control panel variables, system defaults etc
 import webnotes
 import conf
 import json
+from webnotes.utils import cint
 
 @webnotes.whitelist()
 def clear(user=None):
@@ -193,7 +194,7 @@ class Session:
 	def get_expiry_in_seconds(self, expiry):
 		if not expiry: return 3600
 		parts = expiry.split(":")
-		return (int(parts[0]) * 3600) + (int(parts[1]) * 60) + int(parts[2])
+		return (cint(parts[0]) * 3600) + (cint(parts[1]) * 60) + cint(parts[2])
 
 	def delete_session(self):
 		webnotes.cache().delete_value("session:" + self.sid)