Prova cosi:
codice:
$myvalue = "<div  id=\"specialad\" style=\"  position:absolute;   bottom:10px; left:0px; width:100%; height:110px; background:none\"><div id=\"in_special_ad\"   style=\" margin:auto; width:728px;  background: none;\"><div style=\"float:left; width:100%; text-align:right\"><a onclick=\"document.getElementById('specialad').style.display='none'\"  href=\"#\"><img border=\"0\" src=\"http://cccccccccc/AdServer/images/chiudi.png\" alt=\"Chiudi\"  title=\"Chiudi\" /></a></div><div style=\"float:left; width:100%\"><a href=\"http://cccc.com/Clk?id=$id&v=r\"><img src=\"http://ccccc/Banner/3/5/anterima_banner_728x90-618740932.gif\" alt=\"Clicca Qui!\" title=\"Clicca Qui!\"  border=\"0\" /></a></div></div></div>";