[sam]

Пример из SDK:

var lookupItem = new Array;

// This will get the lookup for the attribute primarycontactid on the Account form.
lookupItem = crmForm.all.primarycontactid.DataValue;

// If there is data in the field, show it in a series of alerts.
if (lookupItem[0] != null)
{
   // The text value of the lookup.
   alert(lookupItem[0].name);
...