function mark(cell)
{
	switchClass(cell, 'naviHover');
}

function unMark(cell)
{
	switchClass(cell, 'navi');
}

function switchClass(id, className)
{
	var obj;

	if (document.getElementById)
	{
		obj = document.getElementById(id);
		obj.className = className;
	}
}

function markThird(cell, leftid, rightid, hasleft, hasright)
{
	left = document.getElementById(leftid);
	right = document.getElementById(rightid);

	if (left)
	{
		if (!hasleft)
			left.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_first_left.gif\">";
		else
		{
			if (left.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_active_middle_left.gif\">" || left.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_active_middle_left.gif\">")
				left.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_middle.gif\">";
			else if (left.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_inactive_last_right.gif\">" || left.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_inactive_last_right.gif\">")
				left.innerHTML = "";
			else
				left.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_middle_right.gif\">";
		}
	}

	if (right)
	{
		if (!hasright)
			right.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_last_right.gif\">";
		else
		{
			if (right.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_inactive_middle.gif\">" || right.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_inactive_middle.gif\">")
				right.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_middle_left.gif\">";
			else if (right.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_active_middle_right.gif\">" || right.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_active_middle_right.gif\">")
				right.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_middle.gif\">";
			else if (right.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_inactive_last_right.gif\">" || right.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_inactive_last_right.gif\">")
				right.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_last_right.gif\">";
		}
	}
		
	switchClass(cell, 'thirdNavActive');
}

function unMarkThird(cell, leftid, rightid, hasleft, hasright)
{
	left = document.getElementById(leftid);
	right = document.getElementById(rightid);

	if (left)
	{
		if (!hasleft)
			left.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_inactive_first_left.gif\">";
		else
		{
			if (left.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_active_middle.gif\">" || left.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_active_middle.gif\">")
				left.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_middle_left.gif\">";
			else
				left.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_inactive_middle.gif\">";
		}
	}
	
	if (right)
	{
		if (!hasright)
			right.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_inactive_last_right.gif\">";
		else
		{
			if (right.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_active_middle_left.gif\">" || right.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_active_middle_left.gif\">")
				right.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_inactive_middle.gif\">";
			else if (right.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_active_middle.gif\">" || right.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_active_middle.gif\">")
				right.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_active_middle_right.gif\">";
			else if (right.innerHTML == "<img src=\"http://www.ra-rattay.de/img/navi_active_last_right.gif\">" || right.innerHTML == "<IMG src=\"http://www.ra-rattay.de/img/navi_active_last_right.gif\">")
				right.innerHTML = "<img src=\"http://www.ra-rattay.de/img/navi_inactive_last_right.gif\">";
		}
	}
		
	switchClass(cell, 'thirdNav');
}


function preload()
{
	var a = preload.arguments
	if (document.images)
	{
		for (var i = 1; i < a.length; i++)
		{
			img = new Image;
			img.src = a[i];
		}
	}
}

function swIM(id, srcStr)
{
	var obj = document.getElementById(id);
	obj.src = srcStr;
	return true;
}