Setting the default unit of product

Hello,
Our team is continually getting the request from users that setting the default unit is »a click to far«
So there is a simple solution with using the web service …
I'm posting JavaScript code which is useful to setting the default unit on a product detail part (Opportunity, Quote, Sales Order or Invoice) enter the code bellow in the on change part of the product lookup.


// Setting the default unit***Tomaz Vodusek
var buid;
var productid = crmForm.all.productid.DataValue[0].id;
var authenticationHeader = GenerateAuthenticationHeader();
// Prepare the SOAP message.
var xml = "" +
"" xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'" +
" xmlns:xsd='http://www.w3.org/2001/XMLSchema'>" +
authenticationHeader +
"" +
"" +
"product" +
"" + productid + "" +
"" +
"" +
"defaultuomid" +
"" +
"" +
"" +
"" +
"";
// Prepare the xmlHttpObject and send the request.
var xHReq = new ActiveXObject("Msxml2.XMLHTTP");
xHReq.Open("POST", "/mscrmservices/2007/CrmService.asmx", false);
xHReq.setRequestHeader("SOAPAction", "http://schemas.microsoft.com/crm/2007/WebServices/Retrieve");
xHReq.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
xHReq.setRequestHeader("Content-Length", xml.length);
xHReq.send(xml);
// Capture the result.
var resultXml = xHReq.responseXML;

// Check for errors.
var errorCount = resultXml.selectNodes('//error').length;
if (errorCount != 0) {
var msg = resultXml.selectSingleNode('//description').nodeTypedValue;
alert(msg);
}
// Display the retrieved value.
else {
buid = resultXml.selectSingleNode("//q1:defaultuomid").nodeTypedValue;
}
var ime
// Prepare the SOAP message.
xml = "" +
"" xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'" +
" xmlns:xsd='http://www.w3.org/2001/XMLSchema'>" +
authenticationHeader +
"" +
"" +
"uom" +
"" + buid + "" +
"" +
"" +
"name" +
"" +
"" +
"" +
"" +
"";
// Prepare the xmlHttpObject and send the request.
xHReq = new ActiveXObject("Msxml2.XMLHTTP");
xHReq.Open("POST", "/mscrmservices/2007/CrmService.asmx", false);
xHReq.setRequestHeader("SOAPAction", "http://schemas.microsoft.com/crm/2007/WebServices/Retrieve");
xHReq.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
xHReq.setRequestHeader("Content-Length", xml.length);
xHReq.send(xml);
// Capture the result.
var resultXml = xHReq.responseXML;

// Check for errors.
errorCount = resultXml.selectNodes('//error').length;
if (errorCount != 0) {
var msg = resultXml.selectSingleNode('//description').nodeTypedValue;
alert(msg);
}
// Display the retrieved value.
else {
ime = resultXml.selectSingleNode("//q1:name").nodeTypedValue;
}
// Create an array to set as the DataValue for the lookup control.
var lookupData = new Array();
// Create an object to add to the array.
var lookupItem = new Object();
// Set the id, typename, and name properties to the object.
lookupItem.id = buid;
lookupItem.typename = 'uom';
lookupItem.name = ime;
// Add the object to the array.
lookupData[0] = lookupItem;
// Set the value of the lookup field to the value of the array.
crmForm.all.uomid.DataValue = lookupData;
//Konec Vnosa