<apex:page standardController="Lead" extensions="ZillowLeadExtension">
    <apex:form >  
    <!-- Insert new Lead -->
    <apex:pageBlock title="New Lead" >        
        <apex:pageBlockButtons location="top">                                  
           <apex:commandButton action="{!save}" value="Save" id="saveLead" />       
        </apex:pageBlockButtons>
       <apex:pageBlockSection title="Lead Data" columns="1"> 
          <apex:inputField value="{!aLead.LastName}" />
          <apex:inputField value="{!aLead.FirstName}" />
          <apex:inputField value="{!aLead.Company}" />                                       
          <apex:inputField value="{!aLead.Phone}" />
          <apex:inputField value="{!aLead.Email}" />
          <apex:inputField value="{!aLead.Street}" />
          <apex:inputField value="{!aLead.City}" />
          <apex:inputField value="{!aLead.State}" />
          <apex:inputField value="{!aLead.PostalCode}" />
      </apex:pageBlockSection>
   </apex:pageBlock>
  </apex:form>
 </apex:page>

public class ZillowLeadExtension {
 public Lead aLead ;
 public ZillowLeadExtension(ApexPages.StandardController controller) {
  aLead = new Lead() ;      
 }

public PageReference save() {        
 PageReference pr ;
 try{
  ZillowService p = new ZillowService() ;
  // make the web service call out
  ZillowTypes.PropertySearchResponse r = p.searchZillow( aLead.Street, aLead.City, aLead.State) ;
  // store in custom field
  aLead.Home_Value__c = r.getZEstimateAmount() ;
  // insert new record into DB
  insert aLead ;
  // redirect to the newly inserted lead
  pr = new PageReference( '/' + aLead.id );
 }
  catch( ZillowTypes.ZillowException e){
  System.debug( '**** Caught Exception' +e ) ;
}
 return pr ;
}
}

public class PropertySearchResponse {   
xmldom.element searchResult ;
 public Double getZEstimateAmount(){
        Double.valueOf( searchResult.getElementByTagName( 'amount').nodeValue ) ;
     return d ; 
  } 
}

<—xml version="1.0" encoding="UTF-8" standalone="yes"–>
<!-- Generated by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is JAX-WS RI 2.1.3.1-hudson-417-SNAPSHOT. -->
<definitions targetNamespace="http://PackAdd/" name="AddWSService" xmlns:tns="http://PackAdd/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns="http://schemas.xmlsoap.org/wsdl/">
  <types>
    <xs:schema version="1.0" targetNamespace="http://PackAdd/" xmlns:tns="http://PackAdd/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
      <xs:element name="AddNumbers" type="tns:AddNumbers"/>

  <xs:element name="AddNumbersResponse" type="tns:AddNumbersResponse"/>

  <xs:complexType name="AddNumbers">
    <xs:sequence>
      <xs:element name="a" type="xs:int"/>
      <xs:element name="b" type="xs:int"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="AddNumbersResponse">
    <xs:sequence>
      <xs:element name="return" type="xs:int"/>
    </xs:sequence>
  </xs:complexType>
    </xs:schema>
  </types>
  <message name="AddNumbers">
    <part name="parameters" element="tns:AddNumbers"/>
  </message>
  <message name="AddNumbersResponse">
    <part name="parameters" element="tns:AddNumbersResponse"/>
  </message>
  <portType name="AddWS">
    <operation name="AddNumbers">
      <input message="tns:AddNumbers"/>
      <output message="tns:AddNumbersResponse"/>
    </operation>
  </portType>
  <binding name="AddWSPortBinding" type="tns:AddWS">
    <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
    <operation name="AddNumbers">
      <soap:operation soapAction=""/>
      <input>
        <soap:body use="literal"/>
      </input>
      <output>
        <soap:body use="literal"/>
      </output>
    </operation>
  </binding>
  <service name="AddWSService">
    <port name="AddWSPort" binding="tns:AddWSPortBinding">
      <soap:address location="http://pc-p46799:8081/AddNumbers/AddWSService"/>
    </port>
  </service>
</definitions>

//Generated by wsdl2apex

public class packadd1 {
    public class AddWSPort {
        public String endpoint_x = 'http://pc-p46799:8081/AddNumbers/AddWSService';
        public Map<String,String> inputHttpHeaders_x;
        public Map<String,String> outputHttpHeaders_x;
        public String clientCert_x;
        public String clientCertPasswd_x;
        private String[] ns_map_type_info = new String[]{'http://PackAdd/', 'packadd1'};
        public Integer AddNumbers(Integer a,Integer b) {
            packadd1.AddNumbers request_x = new packadd1.AddNumbers();
            packadd1.AddNumbersResponse response_x;
            request_x.a = a;
            request_x.b = b;
            Map<String, packadd1.AddNumbersResponse> response_map_x = new Map<String, packadd1.AddNumbersResponse>();
            response_map_x.put('response_x', response_x);
            WebServiceCallout.invoke(
              this,
              request_x,
              response_map_x,
              new String[]{endpoint_x,
              '',
              'http://PackAdd/',
              'AddNumbers',
              'http://PackAdd/',
              'AddNumbersResponse',
              'packadd1.AddNumbersResponse'}
            );
            response_x = response_map_x.get('response_x');
            return response_x.return_x;
        }
    }
    public class AddNumbers {
        public Integer a;
        public Integer b;
        private String[] a_type_info = new String[]{'a','http://www.w3.org/2001/XMLSchema','int','1','1','false'};
        private String[] b_type_info = new String[]{'b','http://www.w3.org/2001/XMLSchema','int','1','1','false'};
        private String[] apex_schema_type_info = new String[]{'http://PackAdd/','false'};
        private String[] field_order_type_info = new String[]{'a','b'};
    }
    public class AddNumbersResponse {
        public Integer return_x;
        private String[] return_x_type_info = new String[]{'return','http://www.w3.org/2001/XMLSchema','int','1','1','false'};
        private String[] apex_schema_type_info = new String[]{'http://PackAdd/','false'};
        private String[] field_order_type_info = new String[]{'return_x'};
    }
}

global class WSAddition {
WebService static Integer AddNumbers()
{
   Integer a = 44;
    Integer b = 54;
   

   packadd1.AddWSPort stub = new  packadd1.AddWSPort();
   Integer result = stub.AddNumbers(a, b);
   return(result);
}

}

global class HelloWorld2 {
// The WebService keyword makes this a public WebService method
WebService static String sayHelloWorld(String arg) {
// This method returns a simple message
return 'Hello '+arg;
}
}

<html>
<head>

<script type="text/javascript" src="/js/functions.js"></script>
<script src="/soap/ajax/11.0/connection.js"></script>
<script src="/soap/ajax/11.0/apex.js"></script>
<script>
function demo() {
var result = sforce.apex.execute('HelloWorld2' , 'sayHelloWorld',
{arg:"new Apex user!"});
document.getElementById('userNameArea').innerHTML = 'Congratulations!'
+ ' ' + result;
}
</script>
</head>
<body onload=demo()>
<div id=userNameArea>
</div>
</body>
</html>

public class PropertySearchResponse {   
xmldom.element searchResult ;
 public Double getZEstimateAmount(){
        Double.valueOf( searchResult.getElementByTagName( 'amount').nodeValue ) ;
     return d ; 
  } 
}

<—xml version="1.0"–>
<wsdl:definitions xmlns:http="http://schemas.xmlsoap.org/wsdl/http/"
 name="FLAMericaService"
 targetNamespace="http://fla.merica-us.net/coreBaseObjects"
 xmlns="http://schemas.xmlsoap.org/wsdl/"
 xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
 xmlns:tns="http://fla.merica-us.net" 
 xmlns:s="http://fla.merica-us.net/coreBaseObjects"
 xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
 xmlns:xml-soap="http://xml.apache.org/xml-soap">
 
 <wsdl:types>
  
  
  <xsd:schema elementFormDefault="qualified"
   targetNamespace="http://fla.merica-us.net/coreBaseObjects">
   <xsd:element name="GetHealthProfile">
    <xsd:complexType>
     <xsd:sequence>
      <xsd:element minOccurs="1" maxOccurs="1" name="name" type="s:TXLifeRequest"/>
     </xsd:sequence>
    </xsd:complexType>
   </xsd:element>
   
   <xsd:element name="GetHealthProfileResponse">
    <xsd:complexType>
     <xsd:sequence>
      <xsd:element minOccurs="1" maxOccurs="1"
       name="GetHealthProfileResult" type="xsd:string"/>
     </xsd:sequence>
    </xsd:complexType>
   </xsd:element>
   
   <!-- GetPrescriptionHistory starts here-->
   <xsd:element name="GetPrescriptionHistory">
    <xsd:complexType>
     <xsd:sequence>
      <xsd:element minOccurs="1" maxOccurs="1" name="TXLifeRequest" type="s:TXLifeRequest"/>
     </xsd:sequence>
    </xsd:complexType>
   </xsd:element>
   <xsd:element name="GetPrescriptionHistoryResponse">
    <xsd:complexType>
     <xsd:sequence>
      <xsd:element minOccurs="1" maxOccurs="1"
       name="GetPrescriptionHistoryResult" type="s:TXLifeResponse"/>
     </xsd:sequence>
    </xsd:complexType>
   </xsd:element>
   <!-- GetPrescriptionHistory ends here-->
   
  </xsd:schema>
  
  
  <s:schema xmlns="http://www.w3.org/2001/XMLSchema"
   xmlns:typens="urn:XXXXXAddressFetcher2"
   targetNamespace="http://fla.merica-us.net/coreBaseObjects">
   <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
   
   <complexType name="TXLifeRequest">
    <all>
     <element name="OLifE" type="s:oLifE" nillable="true"/>
     <element name="TransRefGUID" type="string" nillable="true"/>
     <element name="TransType" type="int" nillable="true"/>
     <element name="TransExeDate" type="string" nillable="true"/>
     <element name="TransExeTime" type="string" nillable="true"/>
     <element name="TransMode" type="string" nillable="true"/>
     <element name="TestIndicator" type="int" nillable="true"/>
    </all>
   </complexType>
   
   <complexType name="TXLifeResponse">
    <all>
     <element name="TransResult" type="s:transResult"
      nillable="true"/>
     <element name="OLifE" type="s:oLifE" nillable="true"/>
     <element name="TransRefGUID" type="string" nillable="true"/>
     <element name="TransType" type="int" nillable="true"/>
     <element name="TransExeDate" type="string" nillable="true"/>
     <element name="TransExeTime" type="string" nillable="true"/>
     <element name="TransMode" type="string" nillable="true"/>
     <element name="TestIndicator" type="int" nillable="true"/>
     <element name="TXLifeResponseOLifEExtension"
      type="s:TXLifeResponseOLifEExtension" nillable="true"/>
    </all>
   </complexType>
   
..............  

... Deleted the detailed echma detail because of the limitation of size..

 <!-- GetHelloMsg messages starts here-->
 <wsdl:message name="GetHealthProfileSoapIn">
  <wsdl:part name="parameters" element="s:GetHealthProfile"/>
 </wsdl:message>
 <wsdl:message name="GetHealthProfileSoapOut">
  <wsdl:part name="parameters" element="s:GetHealthProfileResponse"/>
 </wsdl:message>
 
 <!-- GetHelloMsg messages ends here-->
 
 <!-- GetPrescriptionHistory messages starts here-->
 <wsdl:message name="GetPrescriptionHistorySoapIn">
  <wsdl:part name="parameters" element="s:GetPrescriptionHistory"/>
 </wsdl:message>
 <wsdl:message name="GetPrescriptionHistorySoapOut">
  <wsdl:part name="parameters" element="s:GetPrescriptionHistoryResponse"/>
 </wsdl:message>
 <!-- GetPrescriptionHistory messages ends here-->
 
 
 
 <!--  porttype starts here-->
 <wsdl:portType name="FlaMericaServiceSoap">
  
  <wsdl:operation name="GetHealthProfile">
   <wsdl:input message="s:GetHealthProfileSoapIn"/>
   <wsdl:output message="s:GetHealthProfileSoapOut"/>
  </wsdl:operation>
  
  <wsdl:operation name="GetPrescriptionHistory">
   <wsdl:input message="s:GetPrescriptionHistorySoapIn"/>
   <wsdl:output message="s:GetPrescriptionHistorySoapOut"/>
  </wsdl:operation>
  
  
 </wsdl:portType>
 <!-- porttype ends here-->
 
 
 <wsdl:binding name="FlaMericaServiceSoap" type="s:FlaMericaServiceSoap">
  <soap:binding transport="http://schemas.xmlsoap.org/soap/http"
   style="document"/>
  <!-- GetHelloMsg operation starts here-->
  <wsdl:operation name="GetHealthProfile">
   <soap:operation
    soapAction="http://localhost:8080/doclit/sample/services/FLAWebService/GetHelloMsg"
    style="document"/>
   <wsdl:input>
    <soap:body use="literal"/>
   </wsdl:input>
   <wsdl:output>
    <soap:body use="literal"/>
   </wsdl:output>
  </wsdl:operation>
  <!-- GetHelloMsg operation ends here-->
  
  <!-- GetPrescriptionHistory operation starts here-->
  
  <wsdl:operation name="GetPrescriptionHistory">
   <soap:operation
    soapAction="http://localhost:8080/hannover/merica-us/services/FLAWebService/GetPrescriptionHistoryReport"
    style="document"/>
   <wsdl:input>
    <soap:body use="literal"/>
   </wsdl:input>
   <wsdl:output>
    <soap:body use="literal"/>
   </wsdl:output>
  </wsdl:operation>
  
  <!-- GetPrescriptionHistory operation ends here-->
  
 </wsdl:binding> 
 
 
 <wsdl:service name="FlaMericaService">
  <wsdl:port name="FLAWebService" binding="s:FlaMericaServiceSoap">
   <soap:address
    location="http://localhost:8080/hannover/merica-us/services/FLAWebService"/>
  </wsdl:port>
 </wsdl:service>
 
</wsdl:definitions>