var AC_MAX_AMOUNT = "30";

function editQueryString(input, querystr) {
	var cType = document.getElementById("ac_courier_type").value;
	querystr += "&maxcount=" + AC_MAX_AMOUNT + "&type=" + cType;
	var stopCount = document.getElementById("stop_count");
	if(stopCount) {
		querystr += "&stopcount=" + stopCount.value;
	}
	return querystr;
}