function ajaxFunction() {
	
		var ajaxRequest = false;
		try {
			//Firefox, Opera, Safari
			ajaxRequest=new XMLHttpRequest();
		}
			catch(e)
			{
				try {
					//IE
					ajaxRequest=new ActiveXObject("Msxml2.XMLHTTP");
				}
					catch(e)
					{
						try{
						ajaxRequest=new ActiveXObject("Microsoft.XMLHTTP");
						}
					catch(e)
					{
						alert("Your browser does not support AJAX!");
						return false;
					}
					}
			}
			
			//receive data sent from server
			ajaxRequest.onreadystatechange = function(){
				if(ajaxRequest.readyState == 4){
					
					var ajaxDisplay = document.getElementById('event_results');
					ajaxDisplay.innerHTML = ajaxRequest.responseText;
					
				}
			}
			
			//EVENT TYPE
			var form = document.forms["event_form"];
			var e_all = 0;
			var e_event = 0;
			var e_registration = 0;
			var e_camp = 0;
			var e_class = 0;
			var e_sport = 0;
			var e_race = 0;
			var e_tournament = 0;
			var e_ongoing = 0;
			
			if(form.all_events.checked){ e_all = 1; }
			if(form.e_event.checked){ e_event = 1; }
			if(form.registration.checked){ e_registration = 1; }
			if(form.camp.checked){ e_camp = 1; }
			if(form.classes.checked){ e_class = 1; }
			if(form.sport.checked){ e_sport = 1; }
			if(form.race.checked){ e_race = 1; }
			if(form.tournament.checked){ e_tournament = 1; }
			if(form.ongoing.checked){ e_ongoing = 1; }
			
			//AGE GROUP
			var age_group = "";
			for(i = 0; i < form.age_group.length; i++){
				if(form.age_group[i].checked == true){
					age_group = form.age_group[i].value;	
				}
			}
						
			ajaxRequest.open("GET", "get_events.php?c=" + new Date().getTime() + "&e_all=" + e_all + "&e_event=" + e_event + "&e_registration=" + e_registration + "&e_camp=" + e_camp + "&e_class=" + e_class + "&e_sport=" + e_sport + "&e_race=" + e_race + "&e_tournament=" + e_tournament + "&e_ongoing=" + e_ongoing + "&age_group=" + age_group , true);
			ajaxRequest.send(null);
	
	}//end ajaxFunction