function change_service( listing ) {
    
    if( listing == 'new') {
        document.getElementById('update1').style.display    = 'none';
        document.getElementById('update1').style.visibility = 'hidden';
        document.getElementById('update2').style.display    = 'none';
        document.getElementById('update2').style.visibility = 'hidden';
        document.getElementById('new').style.display        = '';
        document.getElementById('new').style.visibility     = 'visible';
    }
    else {
        document.getElementById('update1').style.display    = '';
        document.getElementById('update1').style.visibility = 'visible';
        document.getElementById('update2').style.display    = '';
        document.getElementById('update2').style.visibility = 'visible';
        document.getElementById('new').style.display        = 'none';
        document.getElementById('new').style.visibility     = 'hidden';
    }
}

function checkall_radio_buttons( form, state, name ){
    var elements = form.form.elements; 
    
    for( var i = 0; i < elements.length; i++ )
    {
        el = elements[i];

        // skip the actual radio buttons that triggered this fnc
        if( el.name == name )
            continue;

        if( el.type == 'radio' )
        {
            if( state == 1 && el.value == 1 ) 
            {
                el.checked = true;
            }            
            else if( state == 0 && el.value == 0 )
            {
                el.checked = true;
            }                
        }                
    }                
}