var expandFirstItemAutomatically = false;	// Expand first menu item automatically ?
var initMenuIdToExpand = false;	// Id of menu item that should be initially expanded. the id is defined in the <li> tag.
var expandMenuItemByUrl = true;	// Menu will automatically expand by url - i.e. if the href of the menu item is in the current location, it will expand


var initialMenuItemAlwaysExpanded = true;	// NOT IMPLEMENTED YET

var dhtmlgoodies_slmenuObj;
var divToScroll = false;
var ulToScroll = false;	
var divCounter = 1;
var otherDivsToScroll = new Array();
var divToHide = false;
var parentDivToHide = new Array();
var ulToHide = false;
var offsetOpera = 0;
if(navigator.userAgent.indexOf('Opera')>=0)offsetOpera=1;	
var slideMenuHeightOfCurrentBox = 0;
var objectsToExpand = new Array();
var initExpandIndex = 0;
var alwaysExpanedItems = new Array();

function popMenusToShow()
{
var obj = divToScroll;
var endArray = new Array();
while(obj && obj.tagName!='BODY'){
	if(obj.tagName=='DIV' && obj.id.indexOf('slideDiv')>=0){
		var objFound = -1;
		for(var no=0;no<otherDivsToScroll.length;no++){
			if(otherDivsToScroll[no]==obj){
				objFound = no;		
			}					
		}	
		if(objFound>=0){
			otherDivsToScroll.splice(objFound,1);	
		}		
	}	
	obj = obj.parentNode;
}	
}

function showSubMenu(e,inputObj)
{

if(this && this.tagName)inputObj = this.parentNode;
if(inputObj && inputObj.tagName=='LI'){
	divToScroll = inputObj.getElementsByTagName('DIV')[0];
	for(var no=0;no<otherDivsToScroll.length;no++){
		if(otherDivsToScroll[no]==divToScroll)return;
	}			
}
hidingInProcess = false;
if(otherDivsToScroll.length>0){
	if(divToScroll){				
		if(otherDivsToScroll.length>0){
			popMenusToShow();
		}
		if(otherDivsToScroll.length>0){	
			autoHideMenus();
			hidingInProcess = true;
		}
	}	
}		
if(divToScroll && !hidingInProcess){
	divToScroll.style.display='';
	otherDivsToScroll.length = 0;
	otherDivToScroll = divToScroll.parentNode;
	otherDivsToScroll.push(divToScroll);	
	while(otherDivToScroll && otherDivToScroll.tagName!='BODY'){
		if(otherDivToScroll.tagName=='DIV' && otherDivToScroll.id.indexOf('slideDiv')>=0){
			otherDivsToScroll.push(otherDivToScroll);
								
		}
		otherDivToScroll = otherDivToScroll.parentNode;
	}			
	ulToScroll = divToScroll.getElementsByTagName('UL')[0];
	if(divToScroll.style.height.replace('px','')/1<=1)scrollDownSub();
}	

return false;
}



function autoHideMenus()
{
if(otherDivsToScroll.length>0){
	divToHide = otherDivsToScroll[otherDivsToScroll.length-1];
	parentDivToHide.length=0;
	var obj = divToHide.parentNode.parentNode.parentNode;
	while(obj && obj.tagName=='DIV'){			
		if(obj.id.indexOf('slideDiv')>=0)parentDivToHide.push(obj);
		obj = obj.parentNode.parentNode.parentNode;
	}
	var tmpHeight = (divToHide.style.height.replace('px','')/1 - slideMenuHeightOfCurrentBox);
	if(tmpHeight<0)tmpHeight=0;
	if(slideMenuHeightOfCurrentBox)divToHide.style.height = tmpHeight  + 'px';
	ulToHide = divToHide.getElementsByTagName('UL')[0];
	slideMenuHeightOfCurrentBox = ulToHide.offsetHeight;
	scrollUpMenu();		
}else{
	slideMenuHeightOfCurrentBox = 0;
	showSubMenu();			
}
}


function scrollUpMenu()
{

var height = divToHide.offsetHeight;
height-=15;
if(height<0)height=0;
divToHide.style.height = height + 'px';

for(var no=0;no<parentDivToHide.length;no++){	
	parentDivToHide[no].style.height = parentDivToHide[no].getElementsByTagName('UL')[0].offsetHeight + 'px';
}
if(height>0){
	setTimeout('scrollUpMenu()',5);
}else{
	divToHide.style.display='none';
	otherDivsToScroll.length = otherDivsToScroll.length-1;
	autoHideMenus();			
}
}	

function scrollDownSub()
{
if(divToScroll){			
	var height = divToScroll.offsetHeight/1;
	var offsetMove =Math.min(15,(ulToScroll.offsetHeight - height));
	height = height +offsetMove ;
	divToScroll.style.height = height + 'px';
	
	for(var no=1;no<otherDivsToScroll.length;no++){
		var tmpHeight = otherDivsToScroll[no].offsetHeight/1 + offsetMove;
		otherDivsToScroll[no].style.height = tmpHeight + 'px';
	}			
	if(height<ulToScroll.offsetHeight)setTimeout('scrollDownSub()',5); else {
		divToScroll = false;
		ulToScroll = false;
		if(objectsToExpand.length>0 && initExpandIndex<(objectsToExpand.length-1)){
			initExpandIndex++;
			
			showSubMenu(false,objectsToExpand[initExpandIndex]);
		}
	}
}
}

function initSubItems(inputObj,currentDepth)
{		
divCounter++;		
var div = document.createElement('DIV');	// Creating new div		
div.style.overflow = 'hidden';	
div.style.position = 'relative';
div.style.display='none';
div.style.height = '1px';
div.id = 'slideDiv' + divCounter;
div.className = 'slideMenuDiv' + currentDepth;		
inputObj.parentNode.appendChild(div);	// Appending DIV as child element of <LI> that is parent of input <UL>		
div.appendChild(inputObj);	// Appending <UL> to the div
var menuItem = inputObj.getElementsByTagName('LI')[0];
while(menuItem){
	if(menuItem.tagName=='LI'){
		var aTag = menuItem.getElementsByTagName('A')[0];
		aTag.className='slMenuItem_depth'+currentDepth;	
		var subUl = menuItem.getElementsByTagName('UL');
		if(subUl.length>0){
			initSubItems(subUl[0],currentDepth+1);					
		}
		aTag.onclick = showSubMenu;				
	}			
	menuItem = menuItem.nextSibling;						
}		
}

function initSlideDownMenu()
{
dhtmlgoodies_slmenuObj = document.getElementById('dhtmlgoodies_slidedown_menu');
dhtmlgoodies_slmenuObj.style.visibility='visible';
var mainUl = dhtmlgoodies_slmenuObj.getElementsByTagName('UL')[0];		
var mainMenuItem = mainUl.getElementsByTagName('LI')[0];
mainItemCounter = 1;
while(mainMenuItem){			
	if(mainMenuItem.tagName=='LI'){
		var aTag = mainMenuItem.getElementsByTagName('A')[0];
		aTag.className='slMenuItem_depth1';	
		var subUl = mainMenuItem.getElementsByTagName('UL');
		if(subUl.length>0){
			mainMenuItem.id = 'mainMenuItem' + mainItemCounter;
			initSubItems(subUl[0],2);
			aTag.onclick = showSubMenu;
			mainItemCounter++;
		}				
	}			
	mainMenuItem = mainMenuItem.nextSibling;	
}		

if(location.search.indexOf('mainMenuItemToSlide')>=0){
	var items = location.search.split('&');
	for(var no=0;no<items.length;no++){
		if(items[no].indexOf('mainMenuItemToSlide')>=0){
			values = items[no].split('=');
			showSubMenu(false,document.getElementById('mainMenuItem' + values[1]));	
			initMenuIdToExpand = false;				
		}
	}			
}else if(expandFirstItemAutomatically>0){
	if(document.getElementById('mainMenuItem' + expandFirstItemAutomatically)){
		showSubMenu(false,document.getElementById('mainMenuItem' + expandFirstItemAutomatically));
		initMenuIdToExpand = false;
	}
}

if(expandMenuItemByUrl)
{
	var aTags = dhtmlgoodies_slmenuObj.getElementsByTagName('A');
	for(var no=0;no<aTags.length;no++){
		var hrefToCheckOn = aTags[no].href;				
		if(location.href.indexOf(hrefToCheckOn)>=0 && hrefToCheckOn.indexOf('#')<hrefToCheckOn.length-1){
			initMenuIdToExpand = false;
			var obj = aTags[no].parentNode;
			while(obj && obj.id!='dhtmlgoodies_slidedown_menu'){
				if(obj.tagName=='LI'){							
					var subUl = obj.getElementsByTagName('UL');
					if(initialMenuItemAlwaysExpanded)alwaysExpanedItems[obj.parentNode] = true;
					if(subUl.length>0){								
						objectsToExpand.unshift(obj);
					}
				}
				obj = obj.parentNode;	
			}
			showSubMenu(false,objectsToExpand[0]);
			break;					
		}			
	}
}
		
if(initMenuIdToExpand)
{
	objectsToExpand = new Array();
	var obj = document.getElementById(initMenuIdToExpand)
	while(obj && obj.id!='dhtmlgoodies_slidedown_menu'){
		if(obj.tagName=='LI'){
			var subUl = obj.getElementsByTagName('UL');
			if(initialMenuItemAlwaysExpanded)alwaysExpanedItems[obj.parentNode] = true;
			if(subUl.length>0){						
				objectsToExpand.unshift(obj);
			}
		}
		obj = obj.parentNode;	
	}
	
	showSubMenu(false,objectsToExpand[0]);

}


	
}