document.write('<div id="RectangleRos">');
yld_mgr.place_ad_here("slot4_slot");
document.write('</div>');
document.write('<br>');
document.write('<div id="Skyscraper">');
yld_mgr.place_ad_here("slot3_slot");
document.write('</div>');
document.write('<br>');