typical (bad) ajax worker, idiomatically

script.js

function paralellAjax(url){
    var quickAjax = function(url,callback){
        var ajax = new XMLHttpRequest();
        ajax.onreadystatechange = function(resp){
            if(ajax.readyState === 4 && ajax.status === 200) {
    		    calback(JSON.stringify(ajax.response));
		    }
	    }
	    ajax.open('GET',url,true);
	    ajax.send();
    }
    return cw(quickAjax,url);
}