SharePoint (and Project Server) Shenanigans

 1 <script type='text/javascript'>
 2  
 3 _spBodyOnLoadFunctionNames.push("getUserCollectionFromGroup");
 4  
 5 function getUserCollectionFromGroup() {
 6  var soapEnv =
 7       "<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/'> \
 8       <soap:Body> \
 9         <GetUserCollectionFromGroup xmlns='http://schemas.microsoft.com/sharepoint/soap/directory/'> \
10           <groupName>Group Name Here</groupName> \
11         </GetUserCollectionFromGroup> \
12       </soap:Body> \
13     </soap:Envelope>";
14  $.ajax({
15          url: "/_vti_bin/usergroup.asmx",
16          type: "POST",
17          dataType: "xml",
18          data: soapEnv,
19          complete: getUserCollectionFromGroupReturn,
20          contentType: "text/xml; charset=\"utf-8\""
21      });
22 }
23 function getUserCollectionFromGroupReturn(xData, status) {
24  alert("Status: " + status);
25  alert("Output: " + xData.responseText);
26 }
27 </script>
28