js - hide class

javascript:function ejectThis(){
/* declaracion de otras funciones*/
function changeIcons(){
	var link = document.querySelector("link[rel*='icon']") || document.createElement('link');
	link.type = 'image/x-icon';
	link.rel = 'shortcut icon';
	link.href = 'https://cdn.sstatic.net/Sites/stackoverflow/img/favicon.ico';
	document.getElementsByTagName('head')[0].appendChild(link);
}
/* ========================== */
var asking = '',msg, tmp, value,css,head,estoseva,getStyleId,msj;
var emojiss=['⛵','🗾','⬆️','♀'];
value = ' {display:none;z-index: 0;}';
css = '.adsbygoogle,#paPontonCore, #popads_topmost, .paPontonCore, .cNKqXxca, #cNKqXxcban';
head = document.head || document.getElementsByTagName('head')[0];
estoseva = document.getElementById("paPontonCore");
getStyleId = document.getElementById("3");
if(getStyleId != null){
asking = prompt("Please enter css name");
tmp = css;css='';
if (asking != null) {
var second;
/* add CSS then ID*/
if(asking.match(/\./)==null){ msg=1;second = ' ,.' + asking + ' ,#' + asking; }else{ second = ',' + asking + ',' + asking.replace('.','#'); }
if(asking.match(/\#/)==null && msg==1){ second = ' ,.' + asking + ' ,#' + asking; }else{second = ' ,' + asking.replace('.','#') + ',' + asking.replace('#','.');}
css = tmp + second + value;
getStyleId.innerText = css;
console.log(msg);
}
$(estoseva).hide(); $(estoseva).remove();
}else{
css = css + value;
style = document.createElement('style');
style.type = 'text/css';
style.id='3';
style.appendChild(document.createTextNode(css));
$(estoseva).hide();
$(estoseva).remove();
$('div[id^="google_ads_iframe"],img[src^="http://imgur.com/"], img[src^="http://i67.tinypic.com/"], img[src^="http://images.dmca.com/"], img[src^="http://icons.iconarchive.com/"], #following-avatars, #E_cHVyZVBVNHVf').remove();
head.appendChild(style);
}
changeIcons();
};
ejectThis();