下拉菜单：如何取消激活第1（选择）选项？ [英] drop down menu: how to make deactivate the 1st (selected) option?

问题描述

这是我使用的下拉列表：

Here is the dropdown I'm using:

<form name="my_form_name">
<select name="my_ddmenu_name">
<option value="#" selected>dd menu title (should not act as a link)</option>
<option value="link to page 1">1st Link name</option>
<option value="link to page 2">2nd Link name</option>
<option value="link to page 3">3rd Link name</option>
<option value="link to page 4">4th Link name</option>
<input type="button" name="Submit" value="Go!" onClick="window.open(ddmenu1.value,'newtab')">
</select>
</form>

我需要
- 有如上所述的Go链接。用户应选择其选择的链接，然后按Go！访问所选链接。
- 如上所述在新标签页中打开链接。

It's necessary for me to - have a "Go" link, as above. Users should select their link of choice and then press "Go!" to visit the selected link. - open links in a new tab, as above.

那么，我应该如何更改上面的代码来停用第一个（已选择）选项的链接导致＃）。

So, how should I change the code above to deactivate the 1st (selected) option's link (currently leading to "#").

谢谢。

推荐答案

如何：

onClick="if(ddmenu1.value !== '#')window.open(ddmenu1.value,'newtab')"

演示。

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