Form with Grouped Combo

I have a form with grouped combo.

dhxFormNew = dhxLayout.cells("b").attachForm();
	dhxFormNew.setSkin("dhx_skyblue");
	dhxFormNew.loadStruct("xml/dhxform.xml", function(){
		var z1 = dhxFormNew.getCombo("nodetype");
		z1.enableFilteringMode(false);
		z1.loadXML("xml/1.xml");
		
		var z2 = z1.setAutoSubCombo("php/2.php", "nodedatatype");
	    });

1.xml:

<?xml version="1.0" ?>
<complete>
	<option value="1">one</option>
	<option value="2">two</option>
	<option value="3">three</option>
</complete>[/code]

2.php:
[code]<?php
header("Content-type:text/xml");
print("<?xml version=\"1.0\"?>");
echo "<complete>";
echo '  <option value="1">b1_'.$_GET["parent"].'</option>
	<option value="2">b2_'.$_GET["parent"].'</option>
	<option value="3">b3_'.$_GET["parent"].'</option>';
echo "</complete>";
?>

Have 2 Questions:

  1. How can i set the Label for the Child Combo Box in the Form?
  2. How can i set the spacing between the 2 combo boxes?

Thanks!

Any help for the above 2 questions?

Also, another problem i am having is that the combo list does not drop down nicely. it is offset to the left and covers part of the main box. Any ideas on how to correct this?

Thanks