function obliterate ( inselect ) {
 if ( inselect.options.length > 1 ) {
  while ( inselect.length > 1 ) { inselect.options[1] = null; }
  inselect.selectedIndex = 0;
} }
function showModel( inselect ) {
	var sku = inselect.options[inselect.selectedIndex].value;
	if (sku == '13380' || sku == '13390' || sku == '13104') {
		changeBeauty(7);
	}else if (sku == '13379' || sku == '13193') {
		changeBeauty(4);
	}else if (sku == '13343' || sku == '13105') {
		changeBeauty(9);
	}else if (sku == '13189') {
		changeBeauty(8);
	}else if (sku == '13188') {
		changeBeauty(5);
	}else if (sku == '13191') {
		changeBeauty(2);
	}else if (sku == '13187') {
		changeBeauty(6);
	}else if (sku == '13192') {
		changeBeauty(3);
	}else if (sku == '13190') {
		changeBeauty(1);
	}
}
function buildlist ( inselect, optionlist ) {
 var cloc, cloc2 = 0;
 var portion     = '';
 while ( optionlist.length > 0 ) {
  cloc = optionlist.indexOf( '|' );
  if ( cloc == -1 ) { cloc = optionlist.length; }
  portion = optionlist.substring( 0, cloc );
  cloc2   = portion.indexOf( ':' );
  var foo = new Option( portion.substring( (cloc2 + 1), portion.length ), portion.substring( 0, cloc2 ) );
  inselect.options[inselect.options.length] = foo;
  if ( optionlist.indexOf ( '|' ) != -1 ) { optionlist = optionlist.substring( ( cloc + 1 ), optionlist.length ); }
  else { optionlist = ''; }
} }


function handlesize ( inselect ) {
	obliterate( document.whatamess.colorpick );
	var thissize = inselect.options[inselect.selectedIndex].value;
	var choices = '';
	if ( thissize == '1' ) {
		choices = '13380:Anti-Glare (full front) $12.95|13379:Anti-Glare (display only) $12.95|13390:Transparent (full front) $9.95|13193:Transparent (display only) $9.95|13104:Mirror (full front) $12.95';
	}
	if ( thissize == '2' ) {
		choices = '13343:Anti-Glare (full front) $12.95|13379:Anti-Glare (display only) $12.95|13189:Transparent (full front/back) $14.95|13193:Transparent (display only) $9.95|13105:Mirror (full front) $12.95';
	}
	else if ( thissize == '3' ) {
		choices = '13188:classic (6/7 Gen) Transparent $9.95|13191:5th Gen Transparent $6.95';
	}
	else if ( thissize == '4' ) {
		choices = '13187:nano 3rd Gen Transparent $9.95|13192:nano 2nd Gen Transparent $6.95|13190:nano 1st Gen Transparent $6.95';
	}
	buildlist( document.whatamess.colorpick,choices);
}


function resetfields (  ) {
  document.whatamess.sizepick.selectedIndex = 0;
  document.whatamess.colorpick.selectedIndex = 0;
}

function generate_fields ( inform ) {
  var thiscolor  = inform.colorpick.options[inform.colorpick.selectedIndex].value;
  var sku = '';
  
// a conditional H*A*C*K - array not worth the effort

	inform.ProdId.value = thiscolor; 
}

function handleform ( inform ) {
 var errmsg = '';
  if ( inform.sizepick.selectedIndex < 1 ) { errmsg += '\n   - iPod family'; }
 if ( inform.colorpick.selectedIndex < 1 ) { errmsg += '\n   - Model'; }

// NB: secondary conditional statements below are due to NN 4.x hack

 if ( errmsg ) { alert ('Please choose the following before purchasing:' + errmsg); return false; }
 else { generate_fields( inform ); return true; }
}