Invoking WCF Service through Javascript

Question

How can I access the WCF Service through JavaScript? My problem is, I have to access the operation contracts through the JavaScript (my website is not Ajax enabled).
Previously for calling .asmx web services, I am using the following code snippet

var xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
xmlHttp.open("POST", URL, false);
xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xmlHttp.send(payload);
xmlData = xmlHttp.responseXML;

where url is my webservice location.

Now if I am trying to consume the wcf service in the same manner, I am not able to. Many techies are explaining through AJAX approach, I need an approach without AJAX.

Solution

By using XMLHTTP you ARE using ajax.

There's a full example here:

jQuery AJAX calls to a WCF REST Service