comment purge

// ==UserScript==
// @name Comment purge
// @version 1.0.1
// @author Manish Goregaokar (http://stackapps.com/users/10098/manishearth)
// @description One-click comment purges
// @license GNU GPL v3 (http://www.gnu.org/copyleft/gpl.html)
// @include http://*stackoverflow.com/*
// @include http://*superuser.com/*
// @include http://*serverfault.com/*
// @include http://*stackexchange.com/*
// @include http://discuss.area51.com/*
// ==/UserScript==

function with_jquery(f) {
     var script = document.createElement("script");
     script.type = "text/javascript";
     script.textContent = "(" + f.toString() + ")(jQuery)";
     document.body.appendChild(script);
};


with_jquery(function($){
$('document').ready(function(){
    var htm=$('.post-menu').html()||"";
    if(htm!=-1&&$('[id^=close-question] span').length!=0){
        return;
    }
$('.post-menu').append($('<span class="lsep">|</span><a class="purge" href="javascript:void(0)" title="Purge comments">purge</a>'));
$('.purge').bind("click",function(){

       var postid=$(this).closest('div.question,div[id^=answer]').data('questionid')||$(this).closest('div.question,div[id^=answer]').data('answerid');
$.post('/admin/posts/'+postid+'/delete-comments',{'mod-actions':'delete-comments',
'duration':1,
'target-post-id':postid,
'fkey':StackExchange.options.user.fkey});
return false;
});
});
});