TRI-283: add feader fixed

templates/blocks/n_header.html

@@ -49,4 +49,32 @@
       </div>
     </div>
   </div>
-</header>
+</header>
+<script>
+  function initHeaderState() {
+	var activeClassname = 'scrolled';
+	var $document = $(document);
+	var headerTop = $('.header');
+    console.log('dfsdfdsfsdfsdfsdfsfsfsfsdfsdf')
+		var header = $('.header');
+		$(window).off('scroll.header').on('scroll.header', function() {
+			var scrollTop = $document.scrollTop();
+			var headerHeight = header.outerHeight();
+			var headerHeightTop = headerTop.outerHeight();
+			var top = headerHeight - headerHeightTop - 20;
+			if (scrollTop > headerHeight) {
+        console.log(scrollTop, top)
+				headerTop.addClass(activeClassname);
+				$(document.body).addClass(activeClassname);
+			} else {
+				headerTop.removeClass(activeClassname);
+				$(document.body).removeClass(activeClassname);
+			}
+		});
+	}
+
+$(document).ready(()=>{
+  initHeaderState();
+})
+  console.log($,'sdsdads')
+</script>