// Copyright 2003 Grace Fellowship of Puget Sound



//==========================MENU SETUP=========================	

//MENU OBJECT DEFINITION
	function menu(id,sib,child,root){
		this.id=id.replace(/[A-Z][a-z0-9-_]*$/,"")
		this.element=document.getElementById(id)
		this.parent=this.element.getAttribute("parent")
		this.sib=this.element.getAttribute("sib")
		this.child=this.element.getAttribute("child")
		this.root=this.element.getAttribute("root")
	}				


//=======================UTILITY FUNCTIONS======================

//BROWSER-INDEPENDENT METHOD OF GETTING ELEMENTS

	function test(){
		alert("test")
	}
	
	function getMenu(id){
		if(!id) return false
		return new menu(id)
	}
	
	function checkMenu(id,start){
		var menu, result
		for(menu=start;menu!="";menu=menu.sib){
			if(menu.id==id) return menu
			if((menu.child!="")&&(result=checkMenu(id,menu.child))) return result
		}
		return false
	}
	
//BRING UP DIRECTORY WINDOW FOR SPECIFIC FAMILY

	function dirLookup(name){
		name=name.replace(/ /g, "+")
		var w=window.open("../directory/congregationdir.php?lookup="+name,'dir','resizable=yes,scrollbars=yes')
		w.focus()
		return false
	}



//=====================MISC STUFF=======================
	
//BROWSER SNIFFING	
	msie=navigator.userAgent.indexOf("MSIE")!=-1
	mac=navigator.userAgent.indexOf("Mac")!=-1
	msie_mac=(msie&&mac)
	
//=======================MENU EVENT HANDLERS=====================

	var yOffset
	var mainMenuBkgColor="#363636"
	var mainMenuHiliteBkgColor="#dadada"
	var mainMenuTextColor="#ffffff"
	var mainMenuHiliteTextColor="#000000"
	var subMenuBkgColor="#363636"
	var subMenuHiliteBkgColor="#dadada"
	var subMenuTextColor="#ffffff"
	var subMenuHiliteTextColor="#000000"
	
	var status
	
	var lastRoot=null
	var subList=new Array(10)
	for(var i=0;i<10;i++) subList[i]=null
	var subIndex=0
	
//JUMP TO LOCATION SPECIFIED IN MENU
	function menuGoTo(loc,newWindow){
		if(newWindow){
			var w=window.open(loc,"_blank","resizable=yes,scrollbars=yes,height="+window.innerHeight+",width="+window.innerWidth)
			w.focus();
			return;
		}
		window.location=loc;
	}
//MANAGE THE MENU STRUCTURE ON MOUSEOVER
	function inMenu(elmnt){
		var m=getMenu(elmnt.id)							//find the menu in the menu list
		
//		status.innerHTML=subList[subIndex]+"["+subIndex+"]"

	//TAKE CARE OF PENDING MENU CLEARING EVENTS	
		if(delayTime){									//if there has been a mouseOut command
			if(m.root==lastRoot){						//and we are in the same menu we were previously
				clearTimeout(delayTime)					//cancel the menu clear timeout
				delayTime=false							//and indicate that we are not waiting for a menu clear
			}
			else{
				clearMenu()								//this is a new menu, so we need to clear the old one
			}
		}
		lastRoot=m.root									//remember which main menu item we are servicing
		if(elmnt.id.search(/Sub$/)!=-1) return			//don't need to do more if it is a submenu
		
	//HIGHLIGHT THE ACTIVE MENU ITEM
		var inMain=(m.root==m.id)	
		if(inMain){									//check to see if this is a main menu item
			elmnt.style.backgroundColor=mainMenuHiliteBkgColor	//hilite the main menu item
			elmnt.style.color=mainMenuHiliteTextColor		//hilite text
		}
		else{
			var item=document.getElementById(m.id+"Item")	//find the item
			item.style.backgroundColor=subMenuHiliteBkgColor	//hilite the submenu item
			item.style.color=subMenuHiliteTextColor			//hilite text
		}

	//ELIMINATE OLD SUBMENU IF THERE IS ONE	
		var sub
		if(!inMain){
			sub=document.getElementById(m.parent)			//find the submenu that contains the item
//				status.innerHTML+=sub.id+":"+subIndex
			if(sub!=subList[subIndex]){						//if this is not the main menu item and belongs to a new submenu
				subList[subIndex].style.display="none"		//get rid of the old submenu
				subList[subIndex]=null
				subIndex--
			}
		}
	//SET UP THE NEW SUBMENU IF THERE IS ONE
		if(m.child=="")return;							//don't need to process further if there is no submuen
		sub=document.getElementById(m.id+"Sub")		//find the new submenu
		if(sub==subList[subIndex]) return;				//don't need to process this submenu if it is already being displayed
		sub.style.display="block"							//display submenu

	//ADJUST SUBMENU SIZE AND POSITION
		if(!inMain) parentSub=document.getElementById(m.parent)
		sub.style.left=(inMain? elmnt.offsetParent.offsetLeft:parentSub.offsetLeft+parentSub.offsetWidth)+"px"
		var t=(elmnt.offsetTop+(inMain? elmnt.offsetHeight:parentSub.offsetTop)) 	//calculate top to be even with parent item
		if(msie_mac) t-=4	
		var h=sub.offsetHeight
		var wh
		var wt
		if(window.innerHeight){							//find top and height of screen (browser-dependent)
			wh=window.innerHeight					//mozilla-style
			wt=window.pageYOffset
		}
		else{											//MSIE-style
			if(document.documentElement.clientHeight)	//IE 6 standards compliant mode
				wh=document.documentElement.clientHeight
			else
				wh=document.body.clientHeight			
			wt=document.body.scrollTop
		}
		if((diff=(t+h+yOffset)-(wt+wh))>0){				//is bottom of submenu below the bottom of screen?
			sub.style.top=(t-diff)+"px"					//if so, adjust up
		}
		else{
			sub.style.top=t+"px";						//otherwise set even with top of parent item
		}
		var i
		var w=sub.offsetWidth
		var d=sub.getElementsByTagName("DIV")
		if(d.length>0 && !d[0].style.width){
			for(i=0;i<d.length;i++) d[i].style.width=w+"px"
		}
		if(subList[subIndex]) subIndex++
		subList[subIndex]=sub
	}
	
	delayTime=false

//RESPOND TO MOUSEOUT	
	function  outMenu(elmnt){								//delay clearing the menu to avoid screen glitches
		if(delayTime)clearTimeout(delayTime)			//if a delay timeout is already set, clear it
		delayTime=setTimeout("clearMenu()",100)			//restart the delay timer to 0.5 seconds
		var item=document.getElementById(elmnt.id.replace(/[A-Z][a-z]*$/,"Item"))
		item.style.backgroundColor=(item.parent=="")? mainMenuBkgColor:subMenuBkgColor
		item.style.color=(item.parent=="")? mainMenuTextColor:subMenuTextColor
	}
	
//CLEAR MENU HILITING
	function clearMenu(){
		var item=document.getElementById("startItem")
		var sub,m
		while(item){				//walk through menu list
			item.style.backgroundColor=mainMenuBkgColor	//reset background color
			item.style.color=mainMenuTextColor 			//reset text color
			item=document.getElementById(item.getAttribute("sib")+"Item")
		}
		for(i=0;i<10;i++){
			if(!subList[i]) continue
			subList[i].style.display="none"					//hide submenus
			subList[i]=null
		}
		subIndex=0

		if(delayTime) clearTimeout(delayTime)			//reset 
		delayTime=false
		lastRoot=null
		return 
	}
		
//SET OPACITY FOR VARIOUS BROWSERS
	function setOpacity(obj,opc){
		obj.style.opacity=opc;										//CSS3 standard
		obj.style.MozOpacity=opc;									//Older Mozilla
		obj.style.filter="alpha(opacity="+(opc*100)+")";			//MSIE
	}