Operation Manual

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For example, you might specify that a text field for a person’s age accepts only numbers.

Note: The Validate Form behavior is available only if a text field has been inserted into the document.

Attach JavaScript behaviors to HTML form objects

You can attach JavaScript behaviors stored in Dreamweaver to HTML form objects such as buttons.

1. Select the HTML form object.

2. In the Behaviors panel (Window > Behaviors), click the Plus (+) button, and select a behavior from the list.

Attach custom scripts to HTML form buttons

Some forms use JavaScript or VBScript to perform form processing or some other action on the client as opposed to sending the form data to the

server for processing. You can use Dreamweaver to configure a form button to run a specific client-side script when the user clicks the button.

1. Select a Submit button in a form.

2. In the Behaviors panel (Window > Behaviors), click the Plus (+) button, and select Call JavaScript from the list.

3. In the Call JavaScript box, enter the name of the JavaScript function to run when the user clicks the button, and click OK.

For example, you can enter the name of a function that doesn’t exist yet, such as processMyForm().

4. If your JavaScript function doesn’t exist in the head section of the document yet, add it now.

For example, you could define the following JavaScript function in the head section of the document to display a message

when the user clicks the Submit button:

function processMyForm(){

alert('Thanks for your order!');

}

Create accessible HTML forms

When you insert an HTML form object, you can make the form object accessible, and change the accessibility attributes later.

Add an accessible form object

1. The first time you add accessible form objects, activate the Accessibility dialog box for form objects (see Optimizing the

workspace for visual development).

This is a one-time-only step.

2. In the document, place the insertion point where you want the form object to appear.

3. Select Insert > Form, and select a form object to insert.

The Input Tag Accessibility Attributes dialog box appears.

4. Complete the dialog box, and click OK. Here is a partial list of options:

Note: The screen reader reads the name you enter as the Label attribute for the object.

ID assigns an ID to the form field. This value can be used to refer to the field from JavaScript; it's also used as the value of the

for attribute if you choose the Attach Label Tag Using For option under the Style options.

Wrap With Label Tag Wraps a label tag around the form item, as follows:

<label>

RadioButton1</label>

Attach Label Tag Using For Uses the for attribute to wrap a label tag around the form item, as follows:

<label for="radiobutton">RadioButton2</label>

This choice causes the browser to render text associated with a check box and radio button with a focus rectangle, and

enables the user to select the check box and radio button by clicking anywhere in the associated text instead of just the check

box or radio button control.

Note: This is the preferred option for accessibility; however, the functionality may vary depending on the browser.

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