Save Lighting Theme to Cookie

index.php

@@ -447,12 +447,31 @@ function gtag(){dataLayer.push(arguments);}
 
 		<!-- Universal Scripts -->
 		<script>
+			function getCookie(cname) {
+				let name = cname + "=";
+				let decodedCookie = decodeURIComponent(document.cookie);
+				let ca = decodedCookie.split(';');
+				for(let i = 0; i <ca.length; i++) {
+					let c = ca[i];
+					while (c.charAt(0) == ' ') {
+						c = c.substring(1);
+					}
+					if (c.indexOf(name) == 0) {
+						return c.substring(name.length, c.length);
+					}
+				}
+				return "";
+			}
+			document.documentElement.setAttribute('data-bs-theme', getCookie("theme"));
+
 			document.getElementById('darkModeSwitch').addEventListener('click',()=>{
 				if (document.documentElement.getAttribute('data-bs-theme') == 'dark') {
-					document.documentElement.setAttribute('data-bs-theme','light')
+					document.documentElement.setAttribute('data-bs-theme','light');
+					document.cookie = "theme=light";
 				}
 				else {
-					document.documentElement.setAttribute('data-bs-theme','dark')
+					document.documentElement.setAttribute('data-bs-theme','dark');
+					document.cookie = "theme=dark";
 				}
 			})
 		</script>