function generate_fields ( inform ) {
  var thiscolor = inform.colorpick.options[inform.colorpick.selectedIndex].value;
  var sku       = '';
  
	if (thiscolor == '1') { sku = '13701:1,'; }
	else if (thiscolor == '2') { sku = '13696:1,'; }
	else if (thiscolor == '3') { sku = '13708:1,'; }

	if (inform.add_usbcablewhite.checked == true) {
		sku += '12100:1,';
	}
	if (inform.add_usbcableblack.checked == true) {
		sku += '12101:1,';
	}
	if (inform.add_acpower.checked == true) {
		sku += '13740:1,';
	}

  inform.ProdList.value = sku;
}

function handleform ( inform ) {
 var errmsg = '';

// NB: secondary conditional statements below are due to NN 4.x hack
 if ( inform.colorpick.options[inform.colorpick.selectedIndex].value == '') { errmsg += 'Please Select a color before trying to purchase.'; }

 if ( errmsg ) { alert (errmsg); return false; }
 else { generate_fields( inform ); return true; }
}