function getObject(id)
{
    var obj = null;

    if(document.getElementById)
        obj = document.getElementById(id);
    else if(document.all)
        obj = document.all[id];
    else if(document.layers)
        obj = document.layers[id];

    return obj;
}




function toggleObject(id,idimg)
{
    var obj = getObject(id);
    var objimg = getObject(idimg);

    if(!obj)
        return false;

    if(obj.style.display == 'none')
    {
        var state = 1;
        obj.style.display = '';
        objimg.src='/images/minus.gif';        
    }

    else
    {
        var state = 0;
        obj.style.display = 'none';
        objimg.src='/images/plus.gif'; 
    }

    return true;
}