diff --git a/static/js/node.mjs b/static/js/node.mjs
index bed8a16..d13f213 100644
--- a/static/js/node.mjs
+++ b/static/js/node.mjs
@@ -93,16 +93,22 @@ export class NodeUI extends Component {
 			case 'S':
 				if(evt.ctrlKey || (evt.shiftKey && evt.altKey))
 					this.saveNode()
+				else
+					handled = false
 				break
 
 			case 'N':
 				if((evt.ctrlKey && evt.AltKey) || (evt.shiftKey && evt.altKey))
 					this.createNode()
+				else
+					handled = false
 				break
 
 			case 'U':
 				if((evt.ctrlKey && evt.altKey) || (evt.shiftKey && evt.altKey))
 					this.upload.value = true
+				else
+					handled = false
 
 			default:
 				handled = false
@@ -142,61 +148,32 @@ export class NodeUI extends Component {
 		let name = prompt("Name")
 		if(!name)
 			return
-
-		this.props.app.request('/node/create', {
-			Name: name.trim(),
-			ParentID: this.node.value.ID,
-		})
-		.then(res=>{
-			this.goToNode(res.Node.ID)
-		})
-		.catch(this.props.app.responseError)
+		this.node.value.create(name, nodeID=>this.goToNode(nodeID))
 	}//}}}
 	saveNode() {//{{{
 		let content = this.nodeContent.current.contentDiv.current.value
-		this.props.app.request('/node/update', {
-			NodeID: this.node.value.ID,
-			Content: content,
-		})
-		.then(res=>{
-			this.props.app.nodeModified.value = false
-		})
-		.catch(this.props.app.responseError)
+		this.node.value.save(content, ()=>this.props.app.nodeModified.value = false)
 	}//}}}
 	renameNode() {//{{{
 		let name = prompt("New name")
 		if(!name)
 			return
 
-		this.props.app.request('/node/rename', {
-			Name: name.trim(),
-			NodeID: this.node.value.ID,
-		})
-		.then(_=>{
+		this.node.value.rename(name, ()=>{
 			this.goToNode(this.node.value.ID)
 			this.menu.value = false
 		})
-		.catch(this.props.app.responseError)
 	}//}}}
 	deleteNode() {//{{{
 		if(!confirm("Do you want to delete this note and all sub-notes?"))
 			return
-
-		this.props.app.request('/node/delete', {
-			NodeID: this.node.value.ID,
-		})
-		.then(_=>{
+		this.node.value.delete(()=>{
 			this.goToNode(this.node.value.ParentID)
 			this.menu.value = false
 		})
-		.catch(this.props.app.responseError)
 	}//}}}
 	retrieveTree() {//{{{
-		this.props.app.request('/node/tree', { StartNodeID: this.node.value.ID })
-		.then(res=>{
-			this.tree.value = res.Nodes
-		})
-		.catch(this.props.app.responseError)
+		this.node.value.children(children=>this.tree.value = children)
 	}//}}}
 	renderTree(tree) {//{{{
 		return tree.map(node=>html`<div class="node" style="margin-left: ${(node.Level+1) * 32}px">${node.Name}</div>`)
@@ -261,6 +238,46 @@ class Node {
 		})
 		.catch(this.app.responseError)
 	}//}}}
+	delete(callback) {//{{{
+		this.app.request('/node/delete', {
+			NodeID: this.ID,
+		})
+		.then(callback)
+		.catch(this.app.responseError)
+	}//}}}
+	create(name, callback) {//{{{
+		this.app.request('/node/create', {
+			Name: name.trim(),
+			ParentID: this.ID,
+		})
+		.then(res=>{
+			callback(res.Node.ID)
+		})
+		.catch(this.app.responseError)
+	}//}}}
+	save(content, callback) {//{{{
+		this.app.request('/node/update', {
+			NodeID: this.ID,
+			Content: content,
+		})
+		.then(callback)
+		.catch(this.app.responseError)
+	}//}}}
+	rename(name, callback) {//{{{
+		this.app.request('/node/rename', {
+			Name: name.trim(),
+			NodeID: this.ID,
+		})
+		.then(callback)
+		.catch(this.app.responseError)
+	}//}}}
+	children(callback) {//{{{
+		this.app.request('/node/tree', { StartNodeID: this.ID })
+		.then(res=>{
+			callback(res.Nodes)
+		})
+		.catch(this.app.responseError)
+	}//}}}
 }
 
 class Menu extends Component {