//** All Levels Navigational Menu- (c) Dynamic Drive DHTML code library: http://www.dynamicdrive.com


//** Script Download/ instructions page: http://www.dynamicdrive.com/dynamicindex1/ddlevelsmenu/


//** Usage Terms: http://www.dynamicdrive.com/notice.htm





//** July 7th, 08'- Creation Date





//** July 16th, 08'- Updated to v 1.3:


	//1) Adds "Side Bar" orientation option. 


	//2) Drop Down Menus now auto adjust their positioning if too close to either right or bottom window edges.


	//3) Enhanced IFRAME shim "coverage" on the page.





//** July 19th, 08'- Updated to v 1.31: Drop down menu now positions at top of window edge if there's neither room downwards or upwards to settle.


//** Aug 13th, 08'- v1.32: Moved "rel" attribute from menu's <li> elements to inner <a>, for validation reasons





//** Sept 10th, 08'- Updated to v 1.4:


	//1) Added optional "sliding" animation when sub menus are revealed.


	//2) Arrow images now dynamically positioned, instead of relying on CSS's "right" property





//** Oct 11th, 08'- Updated to v 1.5:


	//1) Sliding animation behavior tweaked


	//2) Added ability to disable iframeshim, customize speed of sliding animation





//** Dec 23rd, 08'- Updated to v 2.0:


	//1) Animation speed refined to be function of time (ie: 1 sec)


	//2) Added two animations that can be individually enabled/disabled- "slide in" and "fade in".


	//3) Script now automatically moves HTML for all sub menus to the end of the page, to avoid any containership issues if they are nested in other elements.





var ddlevelsmenu={





enableshim: true, //enable IFRAME shim to prevent drop down menus from being hidden below SELECT or FLASH elements? (tip: disable if not in use, for efficiency)


downarrowpointer: ["ddlevelsfiles/arrow-down.gif", 11,7], //path to "down arrow" image that gets added to main menu items (last 2 parameters should be width/height of img)


rightarrowpointer: ["ddlevelsfiles/arrow-right.gif", 12,12], //path to "right arrow" image that gets added to LI elements within drop down menu containing additional menus


hideinterval: 200, //delay in milliseconds before entire menu disappears onmouseout.


effects: {enableswipe: true, enablefade: true, duration: 500},


httpsiframesrc: "blank.htm", //If menu is run on a secure (https) page, the IFRAME shim feature used by the script should point to an *blank* page *within* the secure area to prevent an IE security prompt. Specify full URL to that page on your server (leave as is if not applicable).





///No need to edit beyond here////////////////////





topmenuids: [], //array containing ids of all the primary menus on the page


topitems: {}, //object array containing all top menu item links


subuls: {}, //object array containing all ULs


lastactivesubul: {}, //object object containing info for last mouse out menu item's UL


topitemsindex: -1,


ulindex: -1,


hidetimers: {}, //object array timer


shimadded: false,


nonFF: !/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent), //detect non FF browsers


getoffset:function(what, offsettype){


	return (what.offsetParent)? what[offsettype]+this.getoffset(what.offsetParent, offsettype) : what[offsettype]


},





getoffsetof:function(el){


	el._offsets={left:this.getoffset(el, "offsetLeft"), top:this.getoffset(el, "offsetTop")}


},





getwindowsize:function(){


	this.docwidth=window.innerWidth? window.innerWidth-10 : this.standardbody.clientWidth-10


	this.docheight=window.innerHeight? window.innerHeight-15 : this.standardbody.clientHeight-18


},





gettopitemsdimensions:function(){


	for (var m=0; m<this.topmenuids.length; m++){


		var topmenuid=this.topmenuids[m]


		for (var i=0; i<this.topitems[topmenuid].length; i++){


			var header=this.topitems[topmenuid][i]


			var submenu=document.getElementById(header.getAttribute('rel'))


			header._dimensions={w:header.offsetWidth, h:header.offsetHeight, submenuw:submenu.offsetWidth, submenuh:submenu.offsetHeight}


		}


	}


},





isContained:function(m, e){


	var e=window.event || e


	var c=e.relatedTarget || ((e.type=="mouseover")? e.fromElement : e.toElement)


	while (c && c!=m)try {c=c.parentNode} catch(e){c=m}


	if (c==m)


		return true


	else


		return false


},





addpointer:function(target, imgclass, imginfo, BeforeorAfter){


	var pointer=document.createElement("img")


	pointer.src=imginfo[0]


	pointer.style.width=imginfo[1]+"px"


	pointer.style.height=imginfo[2]+"px"


	pointer.style.left=target.offsetWidth-imginfo[2]-2+"px"


	pointer.className=imgclass


	if (BeforeorAfter=="before")


		target.insertBefore(pointer, target.firstChild)


	else


		target.appendChild(pointer)


},





css:function(el, targetclass, action){


	var needle=new RegExp("(^|\\s+)"+targetclass+"($|\\s+)", "ig")


	if (action=="check")


		return needle.test(el.className)


	else if (action=="remove")


		el.className=el.className.replace(needle, "")


	else if (action=="add" && !needle.test(el.className))


		el.className+=" "+targetclass


},





addshimmy:function(target){


	var shim=(!window.opera)? document.createElement("iframe") : document.createElement("div") //Opera 9.24 doesnt seem to support transparent IFRAMEs


	shim.className="ddiframeshim"


	shim.setAttribute("src", location.protocol=="https:"? this.httpsiframesrc : "about:blank")


	shim.setAttribute("frameborder", "0")


	target.appendChild(shim)


	try{


		shim.style.filter='progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)'


	}


	catch(e){}


	return shim


},





positionshim:function(header, submenu, dir, scrollX, scrollY){


	if (header._istoplevel){


		var scrollY=window.pageYOffset? window.pageYOffset : this.standardbody.scrollTop


		var topgap=header._offsets.top-scrollY


		var bottomgap=scrollY+this.docheight-header._offsets.top-header._dimensions.h


		if (topgap>0){


			this.shimmy.topshim.style.left=scrollX+"px"


			this.shimmy.topshim.style.top=scrollY+"px"


			this.shimmy.topshim.style.width="99%"


			this.shimmy.topshim.style.height=topgap+"px" //distance from top window edge to top of menu item


		}


		if (bottomgap>0){


			this.shimmy.bottomshim.style.left=scrollX+"px"


			this.shimmy.bottomshim.style.top=header._offsets.top + header._dimensions.h +"px"


			this.shimmy.bottomshim.style.width="99%"


			this.shimmy.bottomshim.style.height=bottomgap+"px" //distance from bottom of menu item to bottom window edge


		}


	}


},





hideshim:function(){


	this.shimmy.topshim.style.width=this.shimmy.bottomshim.style.width=0


	this.shimmy.topshim.style.height=this.shimmy.bottomshim.style.height=0


},








buildmenu:function(mainmenuid, header, submenu, submenupos, istoplevel, dir){


	header._master=mainmenuid //Indicate which top menu this header is associated with


	header._pos=submenupos //Indicate pos of sub menu this header is associated with


	header._istoplevel=istoplevel


	if (istoplevel){


		this.addEvent(header, function(e){


		ddlevelsmenu.hidemenu(ddlevelsmenu.subuls[this._master][parseInt(this._pos)])


		}, "click")


	}


	this.subuls[mainmenuid][submenupos]=submenu


	header._dimensions={w:header.offsetWidth, h:header.offsetHeight, submenuw:submenu.offsetWidth, submenuh:submenu.offsetHeight}


	this.getoffsetof(header)


	submenu.style.left=0


	submenu.style.top=0


	submenu.style.visibility="hidden"


	this.addEvent(header, function(e){ //mouseover event


		if (!ddlevelsmenu.isContained(this, e)){


			var submenu=ddlevelsmenu.subuls[this._master][parseInt(this._pos)]


			if (this._istoplevel){


				ddlevelsmenu.css(this, "selected", "add")


			clearTimeout(ddlevelsmenu.hidetimers[this._master][this._pos])


			}


			ddlevelsmenu.getoffsetof(header)


			var scrollX=window.pageXOffset? window.pageXOffset : ddlevelsmenu.standardbody.scrollLeft


			var scrollY=window.pageYOffset? window.pageYOffset : ddlevelsmenu.standardbody.scrollTop


			var submenurightedge=this._offsets.left + this._dimensions.submenuw + (this._istoplevel && dir=="topbar"? 0 : this._dimensions.w)


			var submenubottomedge=this._offsets.top + this._dimensions.submenuh


			//Sub menu starting left position


			var menuleft=(this._istoplevel? this._offsets.left + (dir=="sidebar"? this._dimensions.w : 0) : this._dimensions.w)


			if (submenurightedge-scrollX>ddlevelsmenu.docwidth){


				menuleft+= -this._dimensions.submenuw + (this._istoplevel && dir=="topbar" ? this._dimensions.w : -this._dimensions.w)


			}


			submenu.style.left=menuleft+"px"


			//Sub menu starting top position


			var menutop=(this._istoplevel? this._offsets.top + (dir=="sidebar"? 0 : this._dimensions.h) : this.offsetTop)


			if (submenubottomedge-scrollY>ddlevelsmenu.docheight){ //no room downwards?


				if (this._dimensions.submenuh<this._offsets.top+(dir=="sidebar"? this._dimensions.h : 0)-scrollY){ //move up?


					menutop+= - this._dimensions.submenuh + (this._istoplevel && dir=="topbar"? -this._dimensions.h : this._dimensions.h)


				}


				else{ //top of window edge


					menutop+= -(this._offsets.top-scrollY) + (this._istoplevel && dir=="topbar"? -this._dimensions.h : 0)


				}


			}


			submenu.style.top=menutop+"px"


			if (ddlevelsmenu.enableshim && (ddlevelsmenu.effects.enableswipe==false || ddlevelsmenu.nonFF)){ //apply shim immediately only if animation is turned off, or if on, in non FF2.x browsers


				ddlevelsmenu.positionshim(header, submenu, dir, scrollX, scrollY)


			}


			else{


				submenu.FFscrollInfo={x:scrollX, y:scrollY}


			}


			ddlevelsmenu.showmenu(header, submenu, dir)


		}


	}, "mouseover")


	this.addEvent(header, function(e){ //mouseout event


		var submenu=ddlevelsmenu.subuls[this._master][parseInt(this._pos)]


		if (this._istoplevel){


			if (!ddlevelsmenu.isContained(this, e) && !ddlevelsmenu.isContained(submenu, e)) //hide drop down ul if mouse moves out of menu bar item but not into drop down ul itself


				ddlevelsmenu.hidemenu(submenu)


		}


		else if (!this._istoplevel && !ddlevelsmenu.isContained(this, e)){


			ddlevelsmenu.hidemenu(submenu)


		}





	}, "mouseout")


},





setopacity:function(el, value){


	el.style.opacity=value


	if (typeof el.style.opacity!="string"){ //if it's not a string (ie: number instead), it means property not supported


		el.style.MozOpacity=value


		if (el.filters){


			el.style.filter="progid:DXImageTransform.Microsoft.alpha(opacity="+ value*100 +")"


		}


	}


},





showmenu:function(header, submenu, dir){


	if (this.effects.enableswipe || this.effects.enablefade){


		if (this.effects.enableswipe){


			var endpoint=(header._istoplevel && dir=="topbar")? header._dimensions.submenuh : header._dimensions.submenuw


			submenu.style.width=submenu.style.height=0


			submenu.style.overflow="hidden"


		}


		if (this.effects.enablefade){


			this.setopacity(submenu, 0) //set opacity to 0 so menu appears hidden initially


		}


		submenu._curanimatedegree=0


		submenu.style.visibility="visible"


		clearInterval(submenu._animatetimer)


		submenu._starttime=new Date().getTime() //get time just before animation is run


		submenu._animatetimer=setInterval(function(){ddlevelsmenu.revealmenu(header, submenu, endpoint, dir)}, 10)


	}


	else{


		submenu.style.visibility="visible"


	}


},





revealmenu:function(header, submenu, endpoint, dir){


	var elapsed=new Date().getTime()-submenu._starttime //get time animation has run


	if (elapsed<this.effects.duration){


		if (this.effects.enableswipe){


			if (submenu._curanimatedegree==0){ //reset either width or height of sub menu to "auto" when animation begins


				submenu.style[header._istoplevel && dir=="topbar"? "width" : "height"]="auto"


			}


			submenu.style[header._istoplevel && dir=="topbar"? "height" : "width"]=(submenu._curanimatedegree*endpoint)+"px"


		}


		if (this.effects.enablefade){


			this.setopacity(submenu, submenu._curanimatedegree)


		}


	}


	else{


		clearInterval(submenu._animatetimer)


		if (this.effects.enableswipe){


			submenu.style.width="auto"


			submenu.style.height="auto"


			submenu.style.overflow="visible"


		}


		if (this.effects.enablefade){


			this.setopacity(submenu, 1)


			submenu.style.filter=""


		}


		if (this.enableshim && submenu.FFscrollInfo) //if this is FF browser (meaning shim hasn't been applied yet


			this.positionshim(header, submenu, dir, submenu.FFscrollInfo.x, submenu.FFscrollInfo.y)


	}


	submenu._curanimatedegree=(1-Math.cos((elapsed/this.effects.duration)*Math.PI)) / 2


},





hidemenu:function(submenu){


	if (typeof submenu._pos!="undefined"){ //if submenu is outermost UL drop down menu


		this.css(this.topitems[submenu._master][parseInt(submenu._pos)], "selected", "remove")


		if (this.enableshim)


			this.hideshim()


	}


	clearInterval(submenu._animatetimer)


	submenu.style.left=0


	submenu.style.top="-1000px"


	submenu.style.visibility="hidden"


},








addEvent:function(target, functionref, tasktype) {


	if (target.addEventListener)


		target.addEventListener(tasktype, functionref, false);


	else if (target.attachEvent)


		target.attachEvent('on'+tasktype, function(){return functionref.call(target, window.event)});


},





init:function(mainmenuid, dir){


	this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body


	this.topitemsindex=-1


	this.ulindex=-1


	this.topmenuids.push(mainmenuid)


	this.topitems[mainmenuid]=[] //declare array on object


	this.subuls[mainmenuid]=[] //declare array on object


	this.hidetimers[mainmenuid]=[] //declare hide entire menu timer


	if (this.enableshim && !this.shimadded){


		this.shimmy={}


		this.shimmy.topshim=this.addshimmy(document.body) //create top iframe shim obj


		this.shimmy.bottomshim=this.addshimmy(document.body) //create bottom iframe shim obj


		this.shimadded=true


	}


	var menubar=document.getElementById(mainmenuid)


	var alllinks=menubar.getElementsByTagName("a")


	this.getwindowsize()


	for (var i=0; i<alllinks.length; i++){


		if (alllinks[i].getAttribute('rel')){


			this.topitemsindex++


			this.ulindex++


			var menuitem=alllinks[i]


			this.topitems[mainmenuid][this.topitemsindex]=menuitem //store ref to main menu links


			var dropul=document.getElementById(menuitem.getAttribute('rel'))


			document.body.appendChild(dropul) //move main ULs to end of document


			dropul.style.zIndex=2000 //give drop down menus a high z-index


			dropul._master=mainmenuid  //Indicate which main menu this main UL is associated with


			dropul._pos=this.topitemsindex //Indicate which main menu item this main UL is associated with


			this.addEvent(dropul, function(){ddlevelsmenu.hidemenu(this)}, "click")


			var arrowpointer=(dir=="sidebar")? "rightarrowpointer" : "downarrowpointer"





			this.addpointer(menuitem, arrowpointer, this[arrowpointer], (dir=="sidebar")? "before" : "after")


			this.buildmenu(mainmenuid, menuitem, dropul, this.ulindex, true, dir) //build top level menu


			dropul.onmouseover=function(){


				clearTimeout(ddlevelsmenu.hidetimers[this._master][this._pos])


			}


			this.addEvent(dropul, function(e){ //hide menu if mouse moves out of main UL element into open space


				if (!ddlevelsmenu.isContained(this, e) && !ddlevelsmenu.isContained(ddlevelsmenu.topitems[this._master][parseInt(this._pos)], e)){


					var dropul=this


					if (ddlevelsmenu.enableshim)


						ddlevelsmenu.hideshim()


					ddlevelsmenu.hidetimers[this._master][this._pos]=setTimeout(function(){


						ddlevelsmenu.hidemenu(dropul)


					}, ddlevelsmenu.hideinterval)


				}


			}, "mouseout")


			var subuls=dropul.getElementsByTagName("ul")


			for (var c=0; c<subuls.length; c++){


				this.ulindex++


				var parentli=subuls[c].parentNode


				this.addpointer(parentli.getElementsByTagName("a")[0], "rightarrowpointer", this.rightarrowpointer, "before")


				this.buildmenu(mainmenuid, parentli, subuls[c], this.ulindex, false, dir) //build sub level menus


			}


		}


	} //end for loop


	this.addEvent(window, function(){ddlevelsmenu.getwindowsize(); ddlevelsmenu.gettopitemsdimensions()}, "resize")


},





setup:function(mainmenuid, dir){


	this.addEvent(window, function(){ddlevelsmenu.init(mainmenuid, dir)}, "load")


}





}