Get Regarding Activity Status from activitypointer Entity

Here you can find activityid and statecode from activitypointer entity through WebService in JavaScript after passing one parameter "crmForm.ObjectId", parameter return current entitt GUID.

var xml = "" +
"<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
"<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">" +
GenerateAuthenticationHeader() +
" <soap:Body>" +
" <RetrieveMultiple xmlns=\"http://schemas.microsoft.com/crm/2007/WebServices\">" +
" <query xmlns:q1=\"http://schemas.microsoft.com/crm/2006/Query\" xsi:type=\"q1:QueryExpression\">" +
" <q1:EntityName>activitypointer</q1:EntityName>" +
" <q1:ColumnSet xsi:type=\"q1:ColumnSet\">" +
" <q1:Attributes>" +
" <q1:Attribute>activityid</q1:Attribute>" +
" <q1:Attribute>statecode</q1:Attribute>" +
" </q1:Attributes>" +
" </q1:ColumnSet>" +
" <q1:Distinct>false</q1:Distinct>" +
" <q1:Criteria>" +
" <q1:FilterOperator>And</q1:FilterOperator>" +
" <q1:Conditions>" +
" <q1:Condition>" +
" <q1:AttributeName>activitytypecodename</q1:AttributeName>" +
" <q1:Operator>Equal</q1:Operator>" +
" <q1:Values>" +
" <q1:Value xsi:type=\"xsd:string\">Task</q1:Value>" +
" </q1:Values>" +
" </q1:Condition>" +
" <q1:Condition>" +
" <q1:AttributeName>regardingobjectid</q1:AttributeName>" +
" <q1:Operator>Equal</q1:Operator>" +
" <q1:Values>" +
" <q1:Value xsi:type=\"xsd:string\">"+crmForm.ObjectId+"</q1:Value>" +
" </q1:Values>" +
" </q1:Condition>" +
" </q1:Conditions>" +
" </q1:Criteria>" +
" </query>" +
" </RetrieveMultiple>" +
" </soap:Body>" +
"</soap:Envelope>" +
"";

var xmlHttpRequest = new ActiveXObject("Msxml2.XMLHTTP");

xmlHttpRequest.Open("POST", "/mscrmservices/2007/CrmService.asmx", false);
xmlHttpRequest.setRequestHeader("SOAPAction","http://schemas.microsoft.com/crm/2007/WebServices/RetrieveMultiple");
xmlHttpRequest.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
xmlHttpRequest.setRequestHeader("Content-Length", xml.length);
xmlHttpRequest.send(xml);

var objResult = xmlHttpRequest.responseXML;

var buNodes = objResult.selectNodes("//BusinessEntity/q1:statecode"); // CRM 4.0

if(buNodes != null )
{
/*get values*/
for( i = 0; i < buNodes.length; i++)
{
switch(buNodes[i].text)
{
//Put your logic here
}
}
}