function changeCalendar(ppage) {
   
    var categorySelector = document.getElementById("calendarFuture-categoryselect");
	
    var category = categorySelector.options[categorySelector.selectedIndex].value;
    
    var categorySelector = document.getElementById("calendarFuture-monthselect");
    var month = categorySelector.options[categorySelector.selectedIndex].value;

	window.location="/calendar?category=" + category+ "&yearmonth=" + month + "&page=" + ppage;
}

function changecalendarFutureCategory(page) {
    changeCalendar(page);
}

function changecalendarFutureMonth(page) {
    changeCalendar(page);
}

function calendarFuturePage(page) {
    changeCalendar(page);
}

function calendarPastPage(page) {
    new Ajax.Updater("calendarPast", "calendarAJAXpast.jsp?page=" + page);
}