var ddlevelsmenu={
enableshim: true, 
downarrowpointer: ["http://www.4nprospects.com/images/arrow-down.png", 5,4], 
rightarrowpointer: ["arrow-right.gif", 12,12], 
hideinterval: 200, 
revealanimate: [true, 10], 
httpsiframesrc: "blank.htm", 
topmenuids: [], 
topitems: {}, 
subuls: {}, 
lastactivesubul: {}, 
topitemsindex: -1,
ulindex: -1,
hidetimers: {}, 
shimadded: false,
nonFF: !/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent), 
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-150 : 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") 
shim.className="ddiframeshim"
shim.setAttribute("src", location.protocol=="https:"? this.httpsiframesrc : "about:blank")
shim.setAttribute("frameborder", "0")
shim.setAttribute("height", "0")
shim.setAttribute("width", "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" 
}
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" 
}
}
},
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 
header._pos=submenupos 
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){ 
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
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"
var menutop=(this._istoplevel? this._offsets.top + (dir=="sidebar"? 0 : this._dimensions.h) : this.offsetTop)
if (submenubottomedge-scrollY>ddlevelsmenu.docheight){ 
if (this._dimensions.submenuh<this._offsets.top+(dir=="sidebar"? this._dimensions.h : 0)-scrollY){ 
menutop+= - this._dimensions.submenuh + (this._istoplevel && dir=="topbar"? -this._dimensions.h : this._dimensions.h)
}
else{ 
menutop+= -(this._offsets.top-scrollY) + (this._istoplevel && dir=="topbar"? -this._dimensions.h : 0)
}
}
submenu.style.top=menutop+"px"
if (ddlevelsmenu.enableshim && (ddlevelsmenu.revealanimate[0]==false || ddlevelsmenu.nonFF)){ 
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){ 
var submenu=ddlevelsmenu.subuls[this._master][parseInt(this._pos)]
if (this._istoplevel){
if (!ddlevelsmenu.isContained(this, e) && !ddlevelsmenu.isContained(submenu, e)) 
ddlevelsmenu.hidemenu(submenu)
}
else if (!this._istoplevel && !ddlevelsmenu.isContained(this, e)){
ddlevelsmenu.hidemenu(submenu)
}
}, "mouseout")
},
showmenu:function(header, submenu, dir){
if (this.revealanimate[0]){
submenu._curanimatepoint=0
var endpoint=(header._istoplevel && dir=="topbar")? header._dimensions.submenuh : header._dimensions.submenuw
submenu.style.width=submenu.style.height=0
submenu.style.overflow="hidden"
submenu.style.visibility="visible"
clearTimeout(submenu._animatetimer)
submenu._animatetimer=setInterval(function(){ddlevelsmenu.revealmenu(header, submenu, endpoint, dir)}, 10)
}
else{
submenu.style.visibility="visible"
}
},
revealmenu:function(header, submenu, endpoint, dir){
if (submenu._curanimatepoint<endpoint){
if (submenu._curanimatepoint==0) 
submenu.style[header._istoplevel && dir=="topbar"? "width" : "height"]="auto"
submenu.style[header._istoplevel && dir=="topbar"? "height" : "width"]=submenu._curanimatepoint+"px"
}
else{
submenu.style[header._istoplevel && dir=="topbar"? "height" : "width"]=endpoint+"px"
if (this.enableshim && submenu.FFscrollInfo) 
this.positionshim(header, submenu, dir, submenu.FFscrollInfo.x, submenu.FFscrollInfo.y)
submenu.style[header._istoplevel && dir=="topbar"? "height" : "width"]="auto"
submenu.style.overflow="visible"
clearInterval(submenu._animatetimer)
}
submenu._curanimatepoint= submenu._curanimatepoint + Math.round((endpoint-submenu._curanimatepoint)/this.revealanimate[1]) + 1
},
hidemenu:function(submenu){
if (typeof submenu._pos!="undefined"){ 
this.css(this.topitems[submenu._master][parseInt(submenu._pos)], "selected", "remove")
if (this.enableshim)
this.hideshim()
}
clearTimeout(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]=[] 
this.subuls[mainmenuid]=[] 
this.hidetimers[mainmenuid]=[] 
if (this.enableshim && !this.shimadded){
this.shimmy={}
this.shimmy.topshim=this.addshimmy(document.body) 
this.shimmy.bottomshim=this.addshimmy(document.body) 
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 
var dropul=document.getElementById(menuitem.getAttribute('rel'))
dropul.style.zIndex=2000 
dropul._master=mainmenuid  
dropul._pos=this.topitemsindex 
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) 
dropul.onmouseover=function(){
clearTimeout(ddlevelsmenu.hidetimers[this._master][this._pos])
}
this.addEvent(dropul, function(e){ 
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) 
}
}
} 
this.addEvent(window, function(){ddlevelsmenu.getwindowsize(); ddlevelsmenu.gettopitemsdimensions()}, "resize")
},
setup:function(mainmenuid, dir){
this.addEvent(window, function(){ddlevelsmenu.init(mainmenuid, dir)}, "load")
}
}