<?xml version="1.0"?>
  2 <vxml version="2.1">
  3 <var name="sStation"/>
  4 <var name="eStation"/>
  5 <var name="url_string" expr="'http://141.31.8.177:8080/trainApp/GetConString'"/>
  6 <var name="lang"/>
  7 <var name="Log"/>
  8 <script>
  9 <![CDATA[
 10   function getData(d){
 11         var obj ={};
 12
 13         var root = d.documentElement;
 14         var child = root.childNodes.item(0);
 15         var r = child.firstChild.data;
 16         obj[child.nodeName] = r;
 17         return obj;
 18   }
 19 function DOM2JS(oData)
 20 {
 21         var obj = {};
 22
 23          try {
 24             var oRoot = oData.documentElement;
 25             for (var iChild = 0; iChild < oRoot.childNodes.length; iChild++)
 26             {
 27                var oChild = oRoot.childNodes.item(iChild);
 28                if (oChild.nodeType == Node.ELEMENT_NODE) {
 29                  obj[oChild.nodeName] = oChild.firstChild.data;
 30                 }
 31             }
 32          }
 33          catch(e){
 34             //Log("DOM2JS exception : " + e);
 35          }
 36
 37          return obj;
 38 }
 39
 40 function GetData(oJSData, sName, vDefault)
 41 {
 42         return (null != oJSData[sName] ? oJSData[sName] : vDefault);
 43 }
 44 ///function Log(s) { vxmllog(s); }
 45 ]]>
 46 </script>
 47
 48         <form id="get_sStation">
 49                 <field name="from">
 50                         <prompt> What is your start station?</prompt>
 51                         <grammar src="st.gram" type="application/jsgf"/>
 52
 53                         <filled>
 54                                 <assign name="document.sStation" expr="from"/>
 55                                 <goto next="#get_eStation"/>
 56                         </filled>
 57                 </field>
 58         </form>
 59         <form id="get_eStation">
 60                 <field name="to">
 61                         <prompt> What is your end station</prompt>
 62                         <grammar src="st.gram" type="application/jsgf"/>
 63
 64                         <filled>
 65                                 <assign name="document.eStation" expr="to"/>
                                                                                     <goto next="#getData"/>
 67                         </filled>
 68                 </field>
 69         </form>
 70         <form id="getData">
 71                 <block>
 72                         <var name="sString" expr="'?sStation=' + document.sStation"/>
 73                         <var name="eString" expr="'&amp;eStation='+document.eStation"/>
 74                         <var name="lang" expr="'&amp;lang=EN'"/>
 75                 <!--Fetch the Data-->
 76                 <data srcexpr="url_string + sString + eString + lang" name="oResultData"/>
 77                 <!--Assign Data to javascript-->
 78                 <var name="OJSXML" expr="getData(oResultData)"/>
 79                 <prompt>
 80                 <value expr='GetData(OJSXML, "result", "unknown")'/>
 81                 </prompt>
 82                 </block>
 83         </form>
 84 </vxml>
 85