最简单的是隐藏某些标记：
webfx.eae.net/dhtml/dhtmlmenu/menu.html这个菜单里的一段程序：
function showWindowedObjects(show) {
if (hideWindowedControls) {
var windowedObjectTags = new Array("SELECT", "IFRAME", "OBJECT", "APPLET","EMBED");
var windowedObjects = new Array();
var j=0;
for (var i=0; i
var tmpTags = document.all.tags(windowedObjectTags[i]);
if (tmpTags.length > 0) {
for (var k=0; k windowedObjects[j++] = tmpTags[k];
}
}
}
for (var i=0; i if (!show)
windowedObjects[i].visBackup = (windowedObjects[i].style.visibility == null) ? "visible" : windowedObjects[i].style.visibility;
windowedObjects[i].style.visibility = (show) ? windowedObjects[i].visBackup : "hidden";
}
}
}
