var merken = new Array;
merken[''] = new Array(new Array('','alle modellen'),new Array('',''));
merken['32'] = new Array(new Array('','alle modellen'),new Array(206,'Agila'),new Array(207,'Astra'),new Array(222,'Vivaro'));
	

function GetModel($merk)
{
	return eval(merken[$merk]);
}

function UpdateDropDown($merk, $form){
	data = GetModel($merk);
	var j = 0;
	// clear down the dropdown before adding new entries into it.
	$form.i_model.options.length = 1;	
	for (var i=0; i < data.length; i++) 
	{
		$form.i_model.options[j]=new Option(data[i][1]);
		$form.i_model.options[j].value=data[i][0];
		j++;
	}
	return true;
}
//window.onload = checkModel;