function submit () {
	var searchitem = document.search.dropdown.selectedIndex;
	{
	if(searchitem == 0)
		{
			url = "default.asp?market=us&zip=" + document.search.searchtxt.value;
		}
	if(searchitem == 1)
		{
			url = "default.asp?market=us&dealer=" + document.search.searchtxt.value;
		}
	}
		document.location.href = url;
}