var z= 0;
Banner = new Array(z);
Banner[0] = '<object width="100" height="100"><param name="movie" value="http://kolomyya.org/flash/yes.swf"><embed src="http://kolomyya.org/flash/yes.swf" width="100" height="100"></embed></object>';
Banner[1] = '<object width="100" height="100"><param name="movie" value="http://kolomyya.org/flash/kolobanner100x100.swf"><embed src="http://kolomyya.org/flash/kolobanner100x100.swf" width="100" height="100"></embed></object>';

var jetzt=new Date();
var z=(jetzt.getSeconds())%2;
document.write(Banner[z]);