Finding the Selected Button in a Radio Group : RadioButton Radio « Form Control « JavaScript DHTML

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JavaScript DHTML » Form Control » RadioButton Radio 
Finding the Selected Button in a Radio Group
  
<HTML>
<HEAD>
<TITLE>Extracting Highlighted Radio Button</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function getSelectedButton(buttonGroup){
    for (var i = 0; i < buttonGroup.length; i++) {
        if (buttonGroup[i].checked) {
            return i;
        }
    }
    return 0;
}
function fullName(form) {
    var i = getSelectedButton(form.songs);
    alert("You chose " form.songs[i].value + ".");
}
function cycle(form) {
    var i = getSelectedButton(form.songs)
    if (i+== form.songs.length) {
        form.songs[0].checked = true
    else {
        form.songs[i+1].checked = true
    }
}
</SCRIPT>
</HEAD>
<BODY>
<FORM>
<B>Select your favorite song:</B>
<P><INPUT TYPE="radio" NAME="songs" VALUE="A" CHECKED>A
<INPUT TYPE="radio" NAME="songs" VALUE="B" >B
<INPUT TYPE="radio" NAME="songs" VALUE="C" >C
<INPUT TYPE="radio" NAME="songs" VALUE="D" >D</P>
<P><INPUT TYPE="button" NAME="Viewer" VALUE="View Full Name..." onClick="fullName(this.form)"></P>
<P><INPUT TYPE="button" NAME="Cycler" VALUE="Cycle Buttons" onClick="cycle(this.form)"> </P>
</FORM>
</BODY>
</HTML>
           
         
    
  
Related examples in the same category
1. 'defaultChecked' Example
2. Radio Button status Example
3. Check a Radio Button
4. Radio buttons in a form
5. Using the onPropertyChange Property
6. Radio action
7. Methods and Properties of the Radio Object
8. Determining the Value of the Selected Radio Button
9. Scripting a Group of Radio Objects
10. An onClick event Handler for Radio Buttons
11. Get the radio button selection
12. Get the select radio button and its value
13. Cycle the selected radio buttons
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