使用jquery Ajax响应xml中的语法错误

Question

我正在为我的Sample Mobile Application执行以下Ajax代码。我得到一个语法错误的响应Xml，我可以在firebug控制台上看到它。

 script type="text/javascript" charset="utf-8">
   function receive(result){
        console.log(result)
     }

 $( document ).on( "pagecreate", "#home", function( event ) {

    $("#submit").bind("tap",function(){
         var FromCurrency = $("#fromcurrency option:selected").val();
         console.log(FromCurrency)
         var ToCurrency = $("#tocurrency option:selected").val();
         console.log(ToCurrency)



         $.ajax({
            crossDomain: true,
            type:"GET",
            contentType: "content/xml; charset=utf-8",
            async:false,
            url: "http://www.webservicex.net/CurrencyConvertor.asmx/ConversionRate",
            data: {FromCurrency :FromCurrency,ToCurrency :ToCurrency},
            dataType: "jsonp", 
            jsonpCallback: "receive",
            success: function(result){
                console.log("Success")
            },
            error: function(XMLHttpRequest, textStatus, errorThrown){
                console.log(XMLHttpRequest, textStatus, errorThrown)
                console.log(XMLHttpRequest.responseType)
            }
        });
    });
});


</script>

响应Xml：

<?xml version="1.0" encoding="utf-8"?>
<double xmlns="http://www.webserviceX.NET/">61.155</double> 

错误截图：  http://s28.postimg.org/f11gvkgyl/Error.jpg

请帮我找出我的错误。我被困在这里超过三天。谢谢！