if(window.menubar!=null){
if(window.menubar.visible){
alert("has menubar and visible");
}
else{
alert("has menubar but not visible");
}
}
else{
alert("no menubar");
}
if(window.menubar.visible){
alert("has menubar and visible");
}
else{
alert("has menubar but not visible");
}
}
else{
alert("no menubar");
}
该怎么办呀!