Calling an Apex class from a detail page button

The button has the following: (which i got from the salesforce documentation)

{!REQUIRESCRIPT("/soap/ajax/37.0/connection.js")}
{!REQUIRESCRIPT("/soap/ajax/37.0/apex.js")}
var result = sforce.apex.execute("AccountToFACustomer","CreateCustomer",
{
Account.Name:"{! Account.Name}",
Account.Email__c: "{!Account.Email__c}",
Account.Phone:"{!Account.Phone}",
Account.Website: "{!Account.Website}",
Account.Sage_ID__c:"{!Account.SAGE_Id__c}",
Account.BillingStreet:"{!Account.BillingStreet}",
Account.BillingCity: "{!Account.BillingCity}",
Account.BillingState: "{!Account.BillingState}",
Account.BillingCountry: "{!Account.BillingCountry}"
}
);
alert(result);
window.location.reload();

and I have it calling a class i created below, should this work or am i totally missing the mark? 

public with sharing class AccountToFACustomer{ 
        public class Response {
        public integer code {get; set;}
        public String body {get; set;}
        public boolean success {get; set;}
        public Response (integer code, String body){
                this.code = code;
        		this.body = body;
        		this.success = (code == 200 || code == 201);
        }
    }
    public class CustomerResponse{     
        public string uuid {get; set;}
        public string link {get; set;}
        public string location {get; set;}
    }
    public Response CreateCustomer(){
        Response resp;
        string endpoint = 'https://apistaging.website.net/customer/';
        string token = 'Token XXXXXXXX';
        string method = 'POST';
        HttpRequest req = new HttpRequest();
        HttpResponse res = new HttpResponse();
        Http h = new http();
        req.setEndpoint(endpoint);
        req.setMethod(method);
        req.setHeader('Authorization', token);
		req.setHeader('Content-Type', 'application/json');
        req.setHeader('Accept-Type', 'application/json');
        req.setBody(
            '{"name":"'+ Account.Name +'",' +
            '"email":"'+ Account.Email__c + '",'+
             '"phone":"'+ Account.Phone +'",'+
             '"website":"'+ Account.Website +'",'+
             '"location":{'+
                 	'"name":"Account No: '+ Account.Sage_ID__c +'",'+
                    '"streetName":"'+ Account.BillingStreet +'",'+
                    '"locality":"'+ Account.BillingCity +'",'+
                    '"postcode":"'+ Account.BillingState +'",'+
                    '"country":"'+ Account.BillingCountry +'" }}' 
        );
		res = h.send(req);
        resp = new Response(res.getStatusCode(), res.getBody());         
        return resp;   
    }
}