// JavaScript Document
		
var menu_menuObj;	// Reference to the menu div
var currentZIndex = 1000;
var liIndex = 0;
var visibleMenus = new Array();
var activeMenuItem = false;
var timeBeforeAutoHide = 1200; // Microseconds from mouse leaves menu to auto hide.
var menu_menu_arrow = 'images/arrow.gif';
var menudrop_offset = 264;
	
var MSIE = navigator.userAgent.indexOf('MSIE') >= 0 ? true:false;
var navigatorVersion = navigator.appVersion.replace(/.*?MSIE ([0-9]\.[0-9]).*/g,'$1')/1;
var menuBlockArray = new Array();
var menuParentOffsetLeft = false;	
	
function getTopPos(inputObj){
	var returnValue = inputObj.offsetTop;
	if(inputObj.tagName=='LI' && inputObj.parentNode.className == 'menuBlock1'){
		var aTag = inputObj.getElementsByTagName('A')[0];
		if(aTag)returnValue += aTag.parentNode.offsetHeight;
	}	  
	while((inputObj = inputObj.offsetParent) != null)returnValue += inputObj.offsetTop;
	return returnValue;
}

function getLeftPos(inputObj){
	var returnValue = inputObj.offsetLeft;
	//alert(returnValue);
	//while((inputObj = inputObj.offsetParent) != null) returnValue += inputObj.offsetLeft;
	return returnValue;// - menudrop_offset;
}
	
function showHideSub(){
	var attr = this.parentNode.getAttribute('currentDepth');
	if(navigator.userAgent.indexOf('Opera')>=0){
		attr = this.parentNode.currentDepth;
	}
	
	this.className = 'currentDepth' + attr + 'over';
	
	if(activeMenuItem && activeMenuItem!=this){
		activeMenuItem.className=activeMenuItem.className.replace(/over/,'');
	}
	activeMenuItem = this;

	var numericIdThis = this.id.replace(/[^0-9]/g,'');
	var exceptionArray = new Array();
	
	// Showing sub item of this LI
	var sub = document.getElementById('subOf' + numericIdThis);
	if(sub){
		visibleMenus.push(sub);
		sub.style.display='';
		sub.parentNode.className = sub.parentNode.className + 'over';
		exceptionArray[sub.id] = true;
	}	
	
	// Showing parent items of this one
	
	var parent = this.parentNode;
	while(parent && parent.id && parent.tagName=='UL'){
		visibleMenus.push(parent);
		exceptionArray[parent.id] = true;
		parent.style.display='';
		
		var li = document.getElementById('menu_listItem' + parent.id.replace(/[^0-9]/g,''));
		if(li.className.indexOf('over')<0)li.className = li.className + 'over';
		parent = li.parentNode;
		
	}
			
	hideMenuItems(exceptionArray);

}
	
function hideMenuItems(exceptionArray){
	/* Hiding visible menu items */
	var newVisibleMenuArray = new Array();
	for(var no=0;no<visibleMenus.length;no++){
		if(visibleMenus[no].className!='menuBlock1' && visibleMenus[no].id){
			if(!exceptionArray[visibleMenus[no].id]){
				var el = visibleMenus[no].getElementsByTagName('A')[0];
				visibleMenus[no].style.display = 'none';
				var li = document.getElementById('menu_listItem' + visibleMenus[no].id.replace(/[^0-9]/g,''));
				if(li.className.indexOf('over')>0)li.className = li.className.replace(/over/,'');
			}else{				
				newVisibleMenuArray.push(visibleMenus[no]);
			}
		}
	}		
	visibleMenus = newVisibleMenuArray;		
}
	
var menuActive = true;
var hideTimer = 0;
function mouseOverMenu(){
	menuActive = true;		
}
	
function mouseOutMenu(){
	menuActive = false;
	timerAutoHide();	
}

function timerAutoHide(){
	if(menuActive){
		hideTimer = 0;
		return;
	}
	
	if(hideTimer<timeBeforeAutoHide){
		hideTimer+=100;
		setTimeout('timerAutoHide()',99);
	}else{
		hideTimer = 0;
		autohideMenuItems();	
	}
}
	
function autohideMenuItems(){
	if(!menuActive){
		hideMenuItems(new Array());	
		if(activeMenuItem)activeMenuItem.className=activeMenuItem.className.replace(/over/,'');		
	}
}


function initSubMenus(inputObj,initOffsetLeft,currentDepth){	
	var subUl = inputObj.getElementsByTagName('UL');
	if(subUl.length>0){
		var ul = subUl[0];
		
		ul.id = 'subOf' + inputObj.id.replace(/[^0-9]/g,'');
		ul.setAttribute('currentDepth' ,currentDepth);
		ul.currentDepth = currentDepth;
		ul.className='menuBlock' + currentDepth;
		ul.onmouseover = mouseOverMenu;
		ul.onmouseout = mouseOutMenu;
		currentZIndex+=1;
		ul.style.zIndex = currentZIndex;
		menuBlockArray.push(ul);
		var topPos = getTopPos(inputObj);
		//var leftPos = getLeftPos(inputObj)/1 + initOffsetLeft/1;
		var leftPos = getLeftPos(inputObj);
		//alert(leftPos)
		ul = menu_menuObj.appendChild(ul);
		ul.style.position = 'absolute';
		ul.style.left = leftPos + 'px';
		ul.style.top = topPos + 'px';
		var li = ul.getElementsByTagName('LI')[0];
			while(li){
			if(li.tagName=='LI'){	
				li.className='currentDepth' + currentDepth;					
				li.id = 'menu_listItem' + liIndex;
				liIndex++;				
				var uls = li.getElementsByTagName('UL');
				li.onmouseover = showHideSub;
					if(uls.length>0){
					var offsetToFunction = li.getElementsByTagName('A')[0].offsetWidth+2;
					if(navigatorVersion<6 && MSIE)offsetToFunction+=15;	// MSIE 5.x fix
					initSubMenus(li,offsetToFunction,(currentDepth+1));
				}	
				if(MSIE){
					var a = li.getElementsByTagName('A')[0];
					a.style.width=li.offsetWidth+'px';
					a.style.display='block';
				}					
			}
			li = li.nextSibling;
		}
		ul.style.display = 'none';	
		if(!document.all){
			//menu_menuObj.appendChild(ul);
		}
	}	
}

function resizeMenu(){
	var offsetParent = getLeftPos(menu_menuObj);
	
	for(var no=0;no<menuBlockArray.length;no++){
		var leftPos = menuBlockArray[no].style.left.replace('px','')/1;
		menuBlockArray[no].style.left = leftPos + offsetParent - menuParentOffsetLeft + 'px';
	}
	
	menuParentOffsetLeft = offsetParent;
}

/*********** Initializing menu ***********/
function initMenu(){
	menu_menuObj = document.getElementById('menu');
	var aTags = menu_menuObj.getElementsByTagName('A');
	
	for(var no=0;no<aTags.length;no++){			
		var subUl = aTags[no].parentNode.getElementsByTagName('UL');
		if(subUl.length>0 && aTags[no].parentNode.parentNode.parentNode.id != 'menu'){
			var img = document.createElement('IMG');
			img.src = menu_menu_arrow;
			aTags[no].appendChild(img);				
		}
	}
			
	var mainMenu = menu_menuObj.getElementsByTagName('UL')[0];
	mainMenu.className='menuBlock1';
	mainMenu.style.zIndex = currentZIndex;
	mainMenu.setAttribute('currentDepth' ,1);
	mainMenu.currentDepth = '1';
	mainMenu.onmouseover = mouseOverMenu;
	mainMenu.onmouseout = mouseOutMenu;		
	var mainMenuItemsArray = new Array();
	var mainMenuItem = mainMenu.getElementsByTagName('LI')[0];
	mainMenu.style.height = mainMenuItem.offsetHeight + 2 + 'px';
	
	while(mainMenuItem){
		mainMenuItem.className='currentDepth1';
		mainMenuItem.id = 'menu_listItem' + liIndex;
		mainMenuItem.onmouseover = showHideSub;
		liIndex++;				
		if(mainMenuItem.tagName=='LI'){
			mainMenuItem.style.cssText = 'float:left;';	
			mainMenuItem.style.styleFloat = 'left';
			mainMenuItemsArray[mainMenuItemsArray.length] = mainMenuItem;
			initSubMenus(mainMenuItem,0,2);
		}			
		mainMenuItem = mainMenuItem.nextSibling;
	}
	
	for(var no=0;no<mainMenuItemsArray.length;no++){
		initSubMenus(mainMenuItemsArray[no],0,2);			
	}
	
	menuParentOffsetLeft = getLeftPos(menu_menuObj);	
	window.onresize = resizeMenu;	
	menu_menuObj.style.visibility = 'visible';	
}

window.onload = initMenu;