What I did:

First,

//this is to get the proudctid guid that was selected
var product = document.crmForm.all.new_productid;

var product2 = new Array();
product2 = product.DataValue;

var productID = product2[0].id;

var product4 = productID;
//this is where I stop getting the productid guid

//this is me setting the default pricelist to a var
var pl = “{H5637A92-ZGQB-DE91-9J43-001543E82HL4}”;
if (productID!=null)
{

//put an alert message here.

}

// Prepare variables to retrieve Authentication
var authenticationHeader = GenerateAuthenticationHeader();

// Prepare the SOAP message.  This is getting the information from the sever
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’>”+
authenticationHeader+
“<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’>”+

//this is what entity I want to read
“<q1:EntityName>productpricelevel</q1:EntityName>”+
“<q1:ColumnSet xsi:type=’q1:ColumnSet’>”+
“<q1:Attributes>”+

//this is what fields from the entity I want to read
“<q1:Attribute>amount</q1:Attribute>”+
“</q1:Attributes>”+
“</q1:ColumnSet>”+
“<q1:Distinct>false</q1:Distinct>”+
“<q1:Criteria>”+
“<q1:FilterOperator>And</q1:FilterOperator>”+
“<q1:Conditions>”+
“<q1:Condition>”+

//This is where I say what pricelevel I want to use
“<q1:AttributeName>pricelevelid</q1:AttributeName>”+
“<q1:Operator>Equal</q1:Operator>”+
“<q1:Values>”+
“<q1:Value xsi:type=’xsd:string’>”+pl+”</q1:Value>”+
“</q1:Values>”+
“</q1:Condition>”+
“</q1:Conditions>”+
“<q1:FilterOperator>And</q1:FilterOperator>”+
“<q1:Conditions>”+
“<q1:Condition>”+

//this is where I pass the product
“<q1:AttributeName>productid</q1:AttributeName>”+
“<q1:Operator>Equal</q1:Operator>”+
“<q1:Values>”+
“<q1:Value xsi:type=’xsd:string’>”+product4+”</q1:Value>”+
“</q1:Values>”+
“</q1:Condition>”+
“</q1:Conditions>”+
“</q1:Criteria>”+
“</query>”+
“</RetrieveMultiple>”+
“</soap:Body>”+
“</soap:Envelope>”;
// 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/RetrieveMultiple”);
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);
}
// Parse and display the results.
else
{
var results = resultXml.getElementsByTagName(‘BusinessEntity’);
var msg = “”;
if (results.length == 0)
{
msg = “No product was found.”;
alert(msg);
return;
}
else
{
for (i=0;i < results.length;i++)
{

//this is where I get the amount and pass it to the field I want
var amount = results[i].selectSingleNode(‘./q1:amount’).nodeTypedValue;
crmForm.all.priceper.value = amount;

}
}
}

//this is where I calculate the total price

var pri = crmForm.all.priceper.value;
var qt = crmForm.all.quantity.value;
var total = (pri * qt);
crmForm.all.amount.value = total;

Keep moving along now.