Determining Whether a Checkbox Object Is Checked : CheckBox « Form Control « JavaScript DHTML






  1. JavaScript DHTML
  2. Form Control
  3. CheckBox

Determining Whether a Checkbox Object Is Checked

 
<html>
<head>
<title>Online Registration</title>
<SCRIPT LANGUAGE="JavaScript">
     function selectText(currentObject) {
          if (document.form1.selectBox.checked) {
               currentObject.select()
          }
     }
</SCRIPT>
</head>
<body>
    <form name="form1" method="POST">
    <h2>Online Registration</h2>
    <p>Username:<br>
    <input type=text size=25 maxlength=256 name="Username" onFocus="selectText(this)">
    <br>Browser used:<br>
    <input type=text size=25 maxlength=256 name="Browser" onFocus="selectText(this)">
    <br>
    Email address:<strong> <br>
    </strong>
    <input type=text size=25 maxlength=256 name="EmailAddress" onFocus="selectText(this)">
    </p>
    
    <h2>
    <input type=submit value="Register"> 
    <input type=reset value="Clear">
    </h2>
    <p>
    <input type=checkbox name="selectBox">Activate field selection.
    </form>
</body>
</html>








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1.Call 'click()' to triger event
2.'defaultChecked' Example
3.Check status Example
4.'indeterminate' Example
5.CheckBox check action
6.Using the HTML Form Elements Array
7.Checkbox in a form
8.Check and uncheck a checkbox
9.Checkboxes in a form
10.Checkbox Action
11.The Checkbox Object's checked Property
12.The checked Property as a Conditional
13. A Checkbox and an onClick event Handler
14.Check a CheckBox
15.Is checked
16. Methods and Properties of the Checkbox Object
17.A Checkbox and an onclick Event Handler
18.A Checkbox, an onclick Event Handler and show/hide form controls
19.Get value from check box