deleteAllRenrenStatus.js

var sids = document.getElementById("my-status-list").getElementsByTagName("li");
var url = "http://status.renren.com/doing/deleteDoing.do"
for(var i=1;i<sids.length;i++){
    var sid = sids[i].getAttribute("status-id");
    var formData = new FormData();
    formData.append('id',""+sid);
    formData.append('requestToken', ""+nx.user.requestToken);
    formData.append('_rtk', ""+nx.user._rtk);
    var xhr = new XMLHttpRequest();
    xhr.open("POST",url, true);
    xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
    xhr.send(formData);
 }