var xmlHttp = null;
var xmlHttp2 = null;
var xmlHttp3 = null;


function mealChanged(str) { 
	GetXmlHttpObject();

	if (xmlHttp==null) {
		alert ("Your browser does not support AJAX!");
		return;
	} 

	var url="ajax_mealchanged.php";
	url=url+"?meal="+str;
	url=url+"&sid="+Math.random();

	xmlHttp.onreadystatechange = mealChanged_state;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
	
	restaurantChanged("0");
}
function mealChanged_state() { 
	if (xmlHttp.readyState==4) {
		document.getElementById('restaurant_div').innerHTML=xmlHttp.responseText;
	}
}





function restaurantChanged(str) { 
	GetXmlHttpObject2();

	if (xmlHttp2==null) {
		alert ("Your browser does not support AJAX!");
		return;
	} 

	var url="ajax_restaurantchanged.php";
	url=url+"?restaurant="+str;
	url=url+"&sid="+Math.random();

	xmlHttp2.onreadystatechange = restaurantChanged_state;
	xmlHttp2.open("GET",url,true);
	xmlHttp2.send(null);
}
function restaurantChanged_state() { 
	if (xmlHttp2.readyState==4) {
		document.getElementById('button_mealrestaurant_div').innerHTML=xmlHttp2.responseText;
	}
}





function dayChanged(str) { 
	GetXmlHttpObject3();

	if (xmlHttp3==null) {
		alert ("Your browser does not support AJAX!");
		return;
	} 

	var url="ajax_daychanged.php";
	url=url+"?day="+str;
	url=url+"&sid="+Math.random();

	xmlHttp3.onreadystatechange = dayChanged_state;
	xmlHttp3.open("GET",url,true);
	xmlHttp3.send(null);
	
	groupChanged("0");
	foodChanged("0");
}
function dayChanged_state() { 
	if (xmlHttp3.readyState==4) {
		document.getElementById('group_div').innerHTML=xmlHttp3.responseText;
	}
}





function groupChanged(str) { 
	GetXmlHttpObject();

	if (xmlHttp==null) {
		alert ("Your browser does not support AJAX!");
		return;
	} 

	var url="ajax_groupchanged.php";
	url=url+"?group="+str;
	url=url+"&sid="+Math.random();

	xmlHttp.onreadystatechange = groupChanged_state;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
	
	foodChanged("0");
}
function groupChanged_state() { 
	if (xmlHttp.readyState==4) {
		document.getElementById('food_div').innerHTML=xmlHttp.responseText;
	}
}





function foodChanged(str) { 
	GetXmlHttpObject2();

	if (xmlHttp2==null) {
		alert ("Your browser does not support AJAX!");
		return;
	} 

	var url="ajax_foodchanged.php";
	url=url+"?food="+str;
	url=url+"&sid="+Math.random();

	xmlHttp2.onreadystatechange = foodChanged_state;
	xmlHttp2.open("GET",url,true);
	xmlHttp2.send(null);
}
function foodChanged_state() { 
	if (xmlHttp2.readyState==4) {
		document.getElementById('button_infoaction_div').innerHTML=xmlHttp2.responseText;
	}
}





function GetXmlHttpObject() {
	try { // Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e) { // Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
	    catch (e) {
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
}
function GetXmlHttpObject2() {
	try { // Firefox, Opera 8.0+, Safari
		xmlHttp2=new XMLHttpRequest();
	}
	catch (e) { // Internet Explorer
		try {
			xmlHttp2=new ActiveXObject("Msxml2.XMLHTTP");
		}
	    catch (e) {
			xmlHttp2=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
}
function GetXmlHttpObject3() {
	try { // Firefox, Opera 8.0+, Safari
		xmlHttp3=new XMLHttpRequest();
	}
	catch (e) { // Internet Explorer
		try {
			xmlHttp3=new ActiveXObject("Msxml2.XMLHTTP");
		}
	    catch (e) {
			xmlHttp3=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
}