[mirotalksfu] - add Common

public/js/Common.js

@@ -0,0 +1,28 @@
+'use strict';
+
+const poweredBy = document.getElementById('poweredBy');
+const sponsors = document.getElementById('sponsors');
+const advertisers = document.getElementById('advertisers');
+const footer = document.getElementById('footer');
+//...
+
+const config = {
+    html: {
+        poweredBy: true,
+        sponsors: true,
+        advertisers: true,
+        footer: true,
+    },
+    //...
+};
+
+!config.html.poweredBy && elementDisplay(poweredBy, false);
+!config.html.sponsors && elementDisplay(sponsors, false);
+!config.html.advertisers && elementDisplay(advertisers, false);
+!config.html.footer && elementDisplay(footer, false);
+//...
+
+function elementDisplay(element, display, mode = 'block') {
+    if (!element) return;
+    element.style.display = display ? mode : 'none';
+}