var expandFirstItemAutomatically = false;	// Expand first menu item automatically ?
var initMenuIdToExpand = true;	
var initMenuIdToExpand = 'initialExpandedMenuItem';	// 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();
	}	
}



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 activePage = aTag.getAttribute('activePage');
         if(!activePage)activePage = aTag.activePage;
         if(activePage=='true')aTag.style.cssText = cssActiveItem;;
         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){
            var indexSearch1 = location.href.indexOf('?');
            var indexSearch2 = hrefToCheckOn.indexOf('?');
            if((indexSearch1==-1 || indexSearch2==-1) && Math.max(indexSearch2,indexSearch1)>=0){}else{
               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]);
   }
}