<div class="caunt"></div>
<div class="block"></div>
<div class="count"></div>
<div class="block"></div>
$(document).ready(function() {
setInterval( function() {
var view = $('.block'),
count = $('.count');
if ( parseInt( count.text() ) > 199 ) {
view.fadeOut();
} else {
view.fadeIn();
}
}, 200);
});