function CheckMultiple2(frm, name) 
{
 for (var i=0; i < frm.length; i++)
 {
  fldObj = frm.elements[i];
  fldId = fldObj.id;
  if (fldId)
  {
   var fieldnamecheck=fldObj.id.indexOf(name);
   if (fieldnamecheck != -1) 
   {
    if (fldObj.checked) { return true; }
   }
  }
 }
 return false;
}

function CheckForm2(f) 
{
 if (f.email.value == "") 
 {
  alert("Please enter your email address.");
  f.email.focus();
  return false;
 }
 var fname = "CustomFields_1_2";
 var fld = document.getElementById(fname);
 if (fld.value == "") 
 {
  alert("Please enter a value for field First Name");
  fld.focus();
  return false;
 }
 return true;
};