diff --git a/src/browser-action.ts b/src/browser-action.ts
index 0ffe1ef..fdc3291 100644
--- a/src/browser-action.ts
+++ b/src/browser-action.ts
@@ -5,6 +5,26 @@ const login_status = document.getElementById("login-status")
 
 const signup_form = document.getElementById("signup-form") as HTMLFormElement
 
+class PopupState {
+    logged_in: boolean
+
+    visible_section: string
+    page_sections: Map<string, HTMLElement>
+
+    constructor(logged_in: boolean, page_sections: Map<string, HTMLElement>, visible_section: string) {
+        this.logged_in = logged_in
+        this.page_sections = page_sections
+        this.visible_section = visible_section
+    }
+
+    setVisibleSection(section_id: string) {
+        this.visible_section = section_id
+        this.page_sections.forEach((element, id) => {
+            element.style.visibility = id === section_id ? "visible" : "collapse"
+        })
+    }
+}
+
 if (localStorage.getItem("accessToken")) {
     login_status.setAttribute("style", "visibility: visible;")
 }