Excel Services and soap

Excel Services and Soap call.

javascript enabled web services can be used to get client side activites in Excel services.
Below is the code snippet for getRangeA1 -

request = new ActiveXObject("Microsoft.XMLHTTP");
var url = "http://localhost/_vti_bin/excelservice.asmx";
var envelope = "<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>"+
"<getcella1 "+
"xmlns=\'http://schemas.microsoft.com/office/excel/server/webservices\'>"+
"<sessionid>"+ EwaGetSessionId('WebPartWPQ3') +"</sessionId>"+
"<sheetname>"+"Sheet1" +"</sheetName>"+
"<rangename>"+"B3"+"</rangeName>"+
"</GetCellA1></soap:Body></soap:Envelope>";

alert(envelope);
request.open("Post",url,false);
request.setRequestHeader("Content-Type","text/xml");
request.send(envelope);
alert(request.statusText);