function setTypes () {
	var frm_selectBrand = 'brandid';
	selectTypeByBrand($(frm_selectBrand).value);
}



function selectTypeByBrand (brandid) {
	var frm_selectType = 'typeid';
	while ($(frm_selectType).options.length > 0){
		$(frm_selectType).remove($(frm_selectType).selectedIndex)
	}
	insertTypes(brandid)
}



function insertTypes(brandid) {
//	types[] must be defined
	frm_selectType = 'typeid';
	var y=document.createElement('option');
	y.value=0;
	y.text='Select';
	try {
		$(frm_selectType).add(y,null); // standards compliant
	}
	catch(ex){
		$(frm_selectType).add(y); // IE only
	}
	if (brandid > 0) {
		for (var i=0; i < types[brandid].length; i++) {
			var y=document.createElement('option');
			y.value=types[brandid][i][0];
			y.text=types[brandid][i][1];
			try {
				$(frm_selectType).add(y,null); // standards compliant
			}
			catch(ex){
				$(frm_selectType).add(y); // IE only
			}
		}
	}
}