// ================================================================== 
// Copyright 2002 by iQue digital media design                                            
// ------------------------------------------------------------------ 
// menu.jv --  menu besturing javascript                                       
// Language -- Javascript 									
// ------------------------------------------------------------------ 
// Coder/Graphics	Date			Description						
// R Hoekstra		29-mei-2002		creation									
// ================================================================== 



// =======================================================================
// Functions
// =======================================================================

var	colorStore;
var elementOpen = null;

// -----------------------------------------------------------------------
// onMainItem -- pointer over main item, display 
// -----------------------------------------------------------------------
function onMainItem(element)
	{
	
	colorStore = element.style.color;
	element.style.color = "#191BB5";
	element.style.textDecoration = "underline";
	return;
	} // onMainItem

// -----------------------------------------------------------------------
// offMainItem -- pointer off main item
// -----------------------------------------------------------------------
function offMainItem(element)
	{
	element.style.color = colorStore;
	element.style.textDecoration = "none";
	return;
	} // offMainItem


// -----------------------------------------------------------------------
// hideItem -- Hides an item
// -----------------------------------------------------------------------
function hideItem(element) 
	{ 
	var elementParent = element.parentNode;
	var childrenCount = elementParent.childNodes.length;
	var thisChild = 0;

	for (iCounter = 0; iCounter < childrenCount; iCounter++ )
		{
		if (elementParent.childNodes[iCounter].nodeType == 1)
			{
			thisChild = elementParent.childNodes[iCounter];
			if (thisChild != element)
				{
				thisChild.style.display = "none";
				}
			}	
		}

	} // hideItem

// -----------------------------------------------------------------------
// showItem -- Shows an item
// -----------------------------------------------------------------------
function showItem(element) 
	{ 

	var elementParent = element.parentNode;
	var childrenCount = elementParent.childNodes.length;
	var thisChild = 0;


	for (iCounter = 0; iCounter < childrenCount; iCounter++ )
		{
		if (elementParent.childNodes[iCounter].nodeType == 1)
			{
			thisChild = elementParent.childNodes[iCounter];
			if (thisChild != element)
				{
				thisChild.style.display = "";
				}	

			}
		}


	} // showItem

// -----------------------------------------------------------------------
// clickMainItem -- Main item clicked
// -----------------------------------------------------------------------
function clickMainItem(element) 
	{ 
	

	if (element == elementOpen)
		{
		// hide item
		hideItem(element);	
		elementOpen = null;
		}
	else 
		{
		// hide last opened item
		if (elementOpen != null)
			{
			hideItem(elementOpen);	
			}	
		// show new item
		showItem(element);
		// store item as opened
		elementOpen = element;
		}
	return;
	} // clickMainItem


function onLevelOne( el) 
	{
	el.style.color = "#191BB5";
	el.style.textDecoration = "underline";
	return;
	}
function notOnLevelOne( el) 
	{
	el.style.color = "black";
	el.style.textDecoration = "none";
	return;
	}
function hideContents( el) 
	{ 
	 var elParent = el.parentNode;
	 var childrenCount = elParent.children.length;
	 var thisChild = 0;
	 for(i = 0; i<childrenCount; i++ )
	 	{
		thisChild = elParent.children(i);
		if (thisChild !=el )
			{
			if (thisChild.style.display == "" )
				{
				thisChild.style.display = "none";
				}
			else
				{
				thisChild.style.display = "";
				}
			}	
		}
	return;
	}