mozilla
Your Search Results

    id

    id
    Type: unique id
    A unique identifier so that you can identify the element with. You can use this as a parameter to getElementById() and other DOM functions and to reference the element in style sheets.

    Example

    <button id="foo" label="Click Me" oncommand="doSomething()"/>
    
    <script>
    function doSomething(){
        var myButton = document.getElementById('foo');
        myButton.setAttribute('label','The button was pressed');
    }
    </script>
    

    A more abstract version of the above would be a

    <button id="foo" label="Click Me" oncommand="setWidgetLabel(this, 'I was pressed')"/>
    <script>
    function setWidgetLabel(idName, newCaption){
       document.getElementById( idName.id ).setAttribute('label',newCaption)
    }
    
    </script>
    
    Note: Not specifying the id attribute for a window or a prefwindow fills the console with the following warning message: Warning: Empty string passed to getElementById()

    See also

    Document Tags and Contributors

    Contributors to this page: Sheppy, trevorh, madarche, Marsf, Mossop, pippijn, Enn, Ptak82, Mgjbot, Dria, Pmash, Okome
    Last updated by: Sheppy,