Checkbox Action : CheckBox « Form Control « JavaScript DHTML

Checkbox Action

 


<html>
<body>

<script type="text/javascript">
function convertField(field){
    if (document.form1.convertUpper.checked){
      field.value=field.value.toUpperCase()
  }
}

function convertAllFields(){
    document.form1.fname.value=document.form1.fname.value.toUpperCase()
    document.form1.lname.value=document.form1.lname.value.toUpperCase()
}
</script>

<form name="form1">
    First name: 
    <input type="text" name="fname" onChange="convertField(this)" size="20" />
    <br>
    Last name: 
    <input type="text" name="lname" onChange="convertField(this)" size="20" />
    <br>
    Convert fields to upper case 
    <input type="checkBox" name="convertUpper" 
            onClick="if (this.checked) {convertAllFields()}" value="ON">
</form>

</body>
</html>

Related examples in the same category

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.	Determining Whether a Checkbox Object Is Checked
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