var str='<h1>2 x <a href="/story.php?title=War-Thunder_1000-%D0%97%D0%BE%D0%BB%D0%BE%D1%82%D1%8B%D1%85-%D0%BE%D1%80%D0%BB%D0%BE%D0%B2">War Thunder - 1000 Золотых орлов</a></h1>';
var text = str.replace(/^<h1>[^<>]*<a[^<>]*>([^<>]+)<\/a>[^<>]*<\/h1>$/img,"$1");
alert(text)