function changeMarket(actionName) {
	var market = document.form1.market.options[document.form1.market.selectedIndex].value;
	if(market != '0') {
		document.location = '?action=' + actionName + '&market=' + market;
	}
}
function changeYear(actionName) {
	var year = document.form1.year.options[document.form1.year.selectedIndex].value;
	if(year != '0') {
		document.location = '?action=' + actionName + '&year=' + year;
	}
}