javascript 动态改变菜单内容

来源：互联网发布：交换机 mac 编辑：程序博客网时间：2024/05/16 23:35

下面这个直接用 document.createElement()

http://www.lwolf.cn/blog/article/program/338.htm

var items;
        if($("checkbox1").checked==true)
        {
            items = 10;
        }
        else
        {
            items = 5;
        }
        var ddl = $("Select");
        var item;

        ddl.options.length = 0;
        for(var i = 1;i < items;i++)
        {
            item = document.createElement("OPTION");
            item.text = "Test " + i;
            item.value = i;
            ddl.options.add (item);
        }

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document.getElementById("test4").innerHTML="";将其内容重新加载

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use jquery:

 $('#test4').html('你的内容');

add as first:

$j("fieldset#dropdown_menu_move").prepend("something");

add as last:

$j("fieldset#dropdown_menu_move").append("something");

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