Javascript internal Array

Source: Internet
Author: User

1. Document form Array

An array composed of all forms in the document.


<Form ID = "first"> </form>

<Form ID = "second"> </form>

<Form ID = "thrid"> </form>

<SCRIPT type = "text/JavaScript"> <! -- Or <script language = "JavaScript"> -->

VaR FS = Document. forms;

For (I = 0; I <fs. length; ++ I ){

Alert (FS [I]. ID );




2. select the option array of the list.


<Form ID = "first">

<Select name = "object" onclick = "test ()">

<Option value = "China"> China </option>

<Option value = "us"> USA </option>

<Option value = "UK"> UK </option>



<SCRIPT type = "text/JavaScript"> <! -- Or <script language = "JavaScript"> -->

VaR object = Document. getelementbyid ("object ");

For (I = 0; I <object. Options. length; ++ I ){

Alert (object. Options [I]. Value + "," + object. Options [I]. Text );




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