mazell

function post(url, data, callback){
	var ajaxRequest = new XMLHttpRequest();
	
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4 || ajaxRequest.readyState == 200){
			callback(ajaxRequest.responseText);
		}
	}
	ajaxRequest.open("POST", url);
	ajaxRequest.setRequestHeader("Content-Type", "application/json;charset=UTF-8");