Yahoo!Mail greasemonkey

// ==UserScript==
// @name           remove yahoo main ad
// @namespace      yahoo.mail.mainpage
// @description    remove yahoo main page ads
// @include        http://cn.mc153.mail.yahoo.com/mc/*
// ==/UserScript==
function removeEle(elementz){
	var toRemove = document.getElementById(elementz);
	if (toRemove) {
	    toRemove.parentNode.removeChild(toRemove);
	}
}


removeEle("ch_col_h1");
removeEle("gx_vnews");

document.addEventListener('click', clickHandler, true);
function clickHandler(event) {
 // GM_log("User clicked on element: " + event.target);
 // alert(event.target);
 removeEle("ch_col_h1");
 removeEle("gx_vnews");
removeEle("northbanner");
}

document.addEventListener("DOMNodeInserted", nodeInsertedHandler, false);

function nodeInsertedHandler(event) {
 // GM_log("element with id " + event.target.id + " has been added");
 removeEle("ch_col_h1");
 removeEle("gx_vnews");
 removeEle("northbanner");
}