August 1999
Intermediate to advanced
1488 pages
72h 53m
English
Content preview from Pure JavaScript
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Radio.checked
JavaScript 1.0+, JScript 1.0+ Nav2+, IE 3+, Opera3+ Syntax
radio.checked
Description
The checked property of the Radio object is a Boolean value used to determine whether a radio button is in a checked or unchecked state.
Example
Listing 7.432 shows an example of how to determine whether the radio button is checked by using the checked property.
Listing 7.432 Example of the checked Property
<html> <head> <title> Example of the radio checked property</title> </head> <body> <script language="JavaScript"> <!-- Hide // function looks to see if button 1 is checked and displays // an appropriate alert message. function checkButton(){ if(document.form1.button1.checked == true){ alert("Box1 is checked"); } else if(document.form1.button2.checked ... |
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