Update current user info using SPServices and ECMAScript

Here is the source code:

1. Get user info then auto fill to controls

var displayName = "";
function GetUser() 
{ 
	displayName = $().SPServices.SPGetCurrentUser({
	fieldName: "Title"
	});		
	var ctx = new SP.ClientContext.get_current(); 
	this.currentUser = ctx.get_web().get_currentUser();
	ctx.load(this.currentUser);
	ctx.executeQueryAsync(Function.createDelegate(this, this.onSucceededGetUser), 
	Function.createDelegate(this, this.onQueryFailed)); 
}

function onSucceededGetUser(sender, args) 
{ 
	//alert("The users " + this.currentUser.get_loginName()); 	
	$("input[Title='Title']").val(displayName);	
	$("input[Title='Account']").val(this.currentUser.get_loginName());	
	$("input[Title='Email']").val(this.currentUser.get_email());		
}
function onQueryFailed(sender, args) 
{
    alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}	

2. Update user email info

function UpdateUserEmail() 
{ 			
	var ctx = new SP.ClientContext.get_current(); 
	this.currentUser = ctx.get_web().get_currentUser();
	var email = $("input[Title='Email']").val();
	this.currentUser.set_email(email);
	this.currentUser.update();	
	ctx.executeQueryAsync(Function.createDelegate(this, this.onSucceededUpdateUserEmail), 
	Function.createDelegate(this, this.onQueryFailed)); 
}
function onSucceededUpdateUserEmail(sender, args) 
{ 
	alert("Updated! " + this.currentUser.get_email()); 				
}

I’d like SPServices and ECMAScripts.