Adding session persistence
diff --git a/rackspace/lb/v1/sessions/urls.go b/rackspace/lb/v1/sessions/urls.go
new file mode 100644
index 0000000..c4a896d
--- /dev/null
+++ b/rackspace/lb/v1/sessions/urls.go
@@ -0,0 +1,16 @@
+package sessions
+
+import (
+	"strconv"
+
+	"github.com/rackspace/gophercloud"
+)
+
+const (
+	path   = "loadbalancers"
+	spPath = "sessionpersistence"
+)
+
+func rootURL(c *gophercloud.ServiceClient, id int) string {
+	return c.ServiceURL(path, strconv.Itoa(id), spPath)
+}