try {document.execCommand('BackgroundImageCache', false, true);} catch(e) {} function onWinQuestion(ad_type,islogin,loginurl){ if( islogin == '1' ){ var w = window.open('/keyword/question_request.html?ad_type='+ad_type,'winquestion','width=600,height=375,top=200,left=200,scrollbars=none'); w.focus(); }else{ location.href = loginurl; } }