/* Copyright Wojciech Kosnikowski and Andrzej Kosnikowski */

/* All rights reserved */



function getElement(id) 

{

	var item;

	if (document.all) 

		item = document.all[id];

	else 

		item = document.getElementById(id);

	return item;

}



function TotalOffset(item) 

{

	offsetLeft = 0;

	offsetTop = 0;

	do 

	{

		offsetLeft += item.offsetLeft;

		offsetTop += item.offsetTop;

		item = item.offsetParent;

	} while ((item.nodeName != 'BODY') && (item.nodeName != 'DIV'));

	offset = new Array(2);

	offset[0] = offsetLeft;

	offset[1] = offsetTop;

	return offset;

}



function menu_class_light(itemid,submenuid,direction,className)

{

	var item = getElement(itemid);

	var submenu;



	item.className = className;



	var arrow = getElement(itemid+'arrow');

	if (arrow)

		arrow.style.visibility = "visible";



	var a = getElement (itemid+'a');

	if (a)

	{

		a.className = className;

	}



	if (submenuid) 

	{

		offset = TotalOffset(item);

		submenu = getElement(submenuid);

		submenu.style.width = submenu.firstChild.offsetWidth;

		switch (direction) 

		{

			case 0:

				offset[0] -= submenu.offsetWidth;

				offset[1] -= 1;

				break;

			case 1:

				offset[0] -= 1;

				offset[1] += item.offsetHeight;

				break;

			case 2:

				offset[0] += item.offsetWidth;

				offset[1] -= 1;

				break;

		}  

		submenu.style.left = offset[0];

		submenu.style.top = offset[1];	

		submenu.style.visibility = "visible";

	}

}



function menu_class_out(itemid,submenuid,className)

{

	var item = getElement(itemid);

	if (item)

		item.className = className;



	var a = getElement (itemid+'a');

	if (a)

	{

		a.className = className;

	}



	var arrow = getElement(itemid+'arrow');

	if (arrow)

		arrow.style.visibility = "hidden";



	if (submenuid) 

	{

		var submenu = getElement(submenuid);

		submenu.style.visibility = "hidden";

	}

}