prototype_with_soap

var soap_raw_data = escape('<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><TestDB xmlns="http://itstechservices.com/" /></soap:Body></soap:Envelope>');

new Ajax.Request('http://ws.itstechservices.com/TruckServices.asmx',
   {
       method:'post',
	   postData: soap_raw_data,
	   requestHeaders: {SOAPAction: "http://itstechservices.com/TestDB", "Content-Type": "text/xml; charset=utf-8"},
	   onSuccess: function(transport){
	   var response = transport.responseText || "no response text";
	   //alert("Success! \n\n" + response);
       },
	   onFailure: function(){ alert('Something went wrong...') }
   });