function setOver(current_de)
{
    var link_a = current_de.getElementsByTagName('a');

    link_a[0].className = link_a[0].className.replace('out', 'over');
    current_de.className = current_de.className.replace('out', 'over');
}

function setOut(current_de)
{
	if (typeof current_de.active == 'undefined')
	{
    	var link_a = current_de.getElementsByTagName('a');

    	link_a[0].className = link_a[0].className.replace('over', 'out');
    	current_de.className = current_de.className.replace('over', 'out');
    }
}

function setActive(id_s)
{
	var current_de = document.getElementById(id_s);

	setOver(current_de);

	current_de.active = 1;
}

/**/

function setLink(location_s)
{
	document.location.href = location_s;
}

function setDisplaySwitch(name_o)
{
	var element_o = document.getElementById(name_o);
		element_o.style.display = element_o.style.display ? '' : 'none';
};