function answer(code){
	
	var req=null;
	try{
		req=new XMLHttpRequest();
	}
	catch(e){
		req=null; 
	}
	if(req!=null){
		req.open("POST","answer.php",true);
		req.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
		req.send("synID="+encodeURI(code));
	}
	
}