Enable search on category listing

templates/posts.html

@@ -11,27 +11,5 @@
 {% endblock content %}
 
 {% block script %}
-<script>
-function filter_name(str)
-{
-	str = str.toLowerCase();
-	if (str.length == 0) {
-		for (let i = 0; i < articles.length; i++) {
-			articles[i].style.display = "block";
-		}
-	} else {
-		for (let i = 0; i < articles.length; i++) {
-			let name = articles[i].getElementsByTagName("h2")[0].innerHTML.toLowerCase();
-			if (!name.includes(str)) {
-				articles[i].style.display = "none";
-			} else {
-				articles[i].style.display = "block";
-			}
-		}
-	}
-}
-let articles = document.getElementsByTagName("article");
-let search = document.getElementById("search");
-search.style.display = "inline-block";
-</script>
+	<script src="/js/search.js"></script>
 {% endblock %}