// JavaScript Document
function ajaxFunction(div_second_dropdown,first_dropdown,second_dropdown){
	var ajaxRequest;  // magic variable
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	
	// Receive Data Function 
	ajaxRequest.onreadystatechange = function(){
		
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById(div_second_dropdown);
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
		
	}
	
	var first_dropdown = document.getElementById(first_dropdown).value;
	var queryString = "?first_dropdown=" + first_dropdown + "&second_dropdown=" +second_dropdown;
	ajaxRequest.open("GET","http://www.expert-bookings.com/ajax_dropdown/databaseQuery.php" + queryString , true);
	ajaxRequest.send(null);
	document.cookie = '';
}