CRM - Get and Set the current logged in user to a lookup control

There are many posts around finding the current user logged in and setting values in lookup controls for MSCRM 4.0. However, this posts puts them together. Some pratical uses may include:

--Stamping changes when multiple people save to a particular record where the Last Updated only shows one person.
--Auditing control.

Please let me know of any other applications for this code. The code listed in red is the only code you have to change to implement this in your environment.

/********************************************************************/
/* Get the current logged in user and set a systemuser lookup control
/********************************************************************/
var xml = "" +
"" +
"" +
GenerateAuthenticationHeader() +
" " +
" " +
" " +
" systemuser" +
" " +
" " +
" businessunitid" +
" firstname" +
" fullname" +
" lastname" +
" organizationid" +
" systemuserid" +
" " +
" " +
" false" +
" " +
" And" +
" " +
" " +
" systemuserid" +
" EqualUserId" +
" " +
" " +
" " +
" " +
" " +
" " +
"" +
"";

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 resultXml = xmlHttpRequest.responseXML;
var entityNode = resultXml.selectSingleNode("//RetrieveMultipleResult/BusinessEntities/BusinessEntity");

var systemUserIdNode = entityNode.selectSingleNode("q1:systemuserid");
var fullNameNode = entityNode.selectSingleNode("q1:fullname");

//fill current user
var lookupData = new Array();

var lookupId = systemUserIdNode.text;
var lookupTypecode = 8;
var lookupName = fullNameNode.text;

lookupData[0] =new LookupControlItem( lookupId, lookupTypecode, lookupName);

crmForm.all.new_userid.DataValue = lookupData;
crmForm.all.new_userid.ForceSubmit = true;
}

CRM - Dynamic Picklists Using Arrays

For this example, I have a picklist Status and another Reason Code for that status. This code is very easy to maintain assuming some of the values in either the status or reason code changes in the future. This code is very easy to transform into your own environment. Simply change the values listed in red.

/********************************************************************/
/* status and reason code dynamic picklists
/********************************************************************/
var REASON_CODE_VALUES = new Array();
var REASON_CODE_COMPLETE_LIST = new Object();
var STATUS_ELEMENT = document.getElementById('new_status');
var REASON_CODE_ELEMENT = document.getElementById('new_reasoncode');

//REASON_CODE_VALUES['status picklist names'] = [reason code picklist values];
REASON_CODE_VALUES['Approved'] = [47,31,32,70,69,33,34,35,36,37,38,30,54];
REASON_CODE_VALUES['Delayed'] = [39,40,75,73,72,41,57,42,43,58,45,46,61,59,74,60,8,50,14,12,15,49,11,6,9,13,10,4];
REASON_CODE_VALUES['Denied'] = [67,76,19,18,68,21,20,22,53,24,17];
REASON_CODE_VALUES['Incomplete'] = [62,26,63,25,65,29,28,27];

// Store the complete set of values for the pick lists and wire up events
if (REASON_CODE_ELEMENT)
{
REASON_CODE_COMPLETE_LIST = REASON_CODE_ELEMENT.Options;
}
if (STATUS_ELEMENT)
{
STATUS_ELEMENT.onchange = OnStatusChange;
STATUS_ELEMENT.FireOnChange();
}

function OnStatusChange()
{
if (STATUS_ELEMENT && STATUS_ELEMENT.SelectedText && REASON_CODE_ELEMENT)
{
SetupReasonCodeValuesFor(STATUS_ELEMENT.SelectedText);
}
else
{
RemoveAllItemsFrom(REASON_CODE_ELEMENT);
REASON_CODE_ELEMENT.DataValue = null;
}
}

// Clears all the pick list items from the specified element
function RemoveAllItemsFrom(element)
{
if (element)
{
for (var i = element.Options.length - 1; i > 0; i--)
{
element.DeleteOption(parseInt(i));
}
}
}


// Returns true if the passed in array contains the value
function ArrayContains(array, value)
{
var result = false;
if (array && value)
{
for (var i = 0; i < result =" true;" currentvalue =" REASON_CODE_ELEMENT.DataValue;" options =" REASON_CODE_COMPLETE_LIST;" reasoncodevalues =" REASON_CODE_VALUES[StatusType];" i =" REASON_CODE_ELEMENT.Options.length"> 0; i--)
{
if (!ArrayContains(ReasonCodeValues, i))
{
REASON_CODE_ELEMENT.DeleteOption(parseInt(i));
}
}
}
else
{
RemoveAllItemsFrom(REASON_CODE_ELEMENT);
}
// Set the current value back into the element
REASON_CODE_ELEMENT.DataValue = currentValue;
}