[Deff]

url = 'http://www.yandex.ua/search?...'
tst = url.split(/:?[\/]+/);
var out=tst[2].split("?")[0];
if(out=='')out='/'
if(out!=tst[2]&&(out=='webhp'||out=='search'||out.indexOf('#')==0||out=='/')) {
alert('>'+out+'<');
}