/**
 * @author Marcel Dix
 */

var expandFirstItemAutomatically = false;	// Expand first menu item automatically ?
var initMenuIdToExpand = '';
// 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 theslidemenu_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();
//document.getElementById('mainContainer').style.display = 'none';	
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(e == false && inputObj != undefined){
		if(inputObj.getElementsByTagName('TABLE')[0].getElementsByTagName('TR')[0].getElementsByTagName('TD')[0].innerHTML == '+'){
		inputObj.getElementsByTagName('TABLE')[0].getElementsByTagName('TR')[0].getElementsByTagName('TD')[0].innerHTML = '-';
		}
	}
	
	if(this && this.tagName)inputObj = this.parentNode;
	if(this.tagName == 'TABLE' && this.id != ''){
		return;
	}else{
		if(this.tagName == 'TABLE' && inputObj != undefined){
			if(inputObj.getElementsByTagName('TABLE')[0].getElementsByTagName('TR')[0].getElementsByTagName('TD')[0].innerHTML == '+'){			
				this.getElementsByTagName('TR')[0].getElementsByTagName('TD')[0].innerHTML = '-';
			}		
		}
		
	}
		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 replaceAll( str, from, to ) {
    var idx = str.indexOf( from );


    while ( idx > -1 ) {
        str = str.replace( from, to );
        idx = str.indexOf( from );
    }

    return str;
}


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();			
	}
	//divToHide.innerHTML = replaceAll(divToHide.innerHTML, '~', '^');
}	

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('TABLE')[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()
{
	theslidemenu_slmenuObj = document.getElementById('theslidemenu_slidedown_menu');
	theslidemenu_slmenuObj.style.visibility='visible';
	var mainUl = theslidemenu_slmenuObj.getElementsByTagName('UL')[0];		
	var mainMenuItem = mainUl.getElementsByTagName('LI')[0];
	mainItemCounter = 1;

	while(mainMenuItem){			
		if(mainMenuItem.tagName=='LI'){
			var aTag = mainMenuItem.getElementsByTagName('TABLE')[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 = theslidemenu_slmenuObj.getElementsByTagName('TABLE');
		for(var no=0;no<aTags.length;no++){

			var hrefToCheckOn = aTags[no].id;				

			if(location.href.indexOf(hrefToCheckOn)>=0 && hrefToCheckOn.indexOf('#')<hrefToCheckOn.length-1){
				initMenuIdToExpand = false;
				
				var obj = aTags[no].parentNode;
				while(obj && obj.id!='theslidemenu_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!='theslidemenu_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]);

	}
	document.getElementById('mainContainer').style.visibility = 'visible';	
	
		
}
window.onload = initSlideDownMenu;
function togglePlus(thetr){
	
	for(var i=0; i < tel; i++){
		var thetd = document.getElementById('thePlus' + i).innerHTML;
				
		if(thetd == '-'){
			//alert(document.getElementById('thePlus' + i).parentNode.innerHTML);
			
			document.getElementById('thePlus' + i).innerHTML = '+';
		}
	}
	/*var thetd = document.getElementById(thetr).innerHTML;
	if(thetd == '+'){
		document.getElementById(thetr).innerHTML = '-';
	}*/
}