/***********************************************
* AnyLink Drop Down Menu- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var menu1=new Array()
menu1[0]='<a href="../aboutus.html" class="topsubnav">Our mission and programs</a>'
menu1[1]='<a href="../accomplishments.html" class="topsubnav">Recent accomplishments</a>'
menu1[2]='<a href="../staff_board.html" class="topsubnav">Staff and Board</a>'
menu1[3]='<a href="../reports_papers.html" class="topsubnav">Annual Reports</a>'
menu1[4]='<a href="../employment.html" class="topsubnav">Employment</a>'
menu1[5]='<a href="../directions.html" class="topsubnav">Directions</a>'
menu1[6]='<a href="../contactus.html" class="topsubnav">Contact Us</a>'
menu1[7]='<a href="../crwa_store.html" class="topsubnav">CRWA Store</a>'

var menu2=new Array()
menu2[0]='<a href="../watershed.html" class="topsubnav">Charles River watershed</a>'
menu2[1]='<a href="../cr_history.html" class="topsubnav">Charles River history</a>'
menu2[2]='<a href="../cr_issues.html" class="topsubnav">Charles River issues</a>'
menu2[3]='<a href="../cr_recreation.html" class="topsubnav">Recreation on the Charles</a>'
menu2[4]='<a href="../cr_resources.html" class="topsubnav">Watershed resources and links</a>'

var menu3=new Array()
menu3[0]='<a href="../membership.html" class="topsubnav">Membership</a>'
menu3[1]='<a href="../donations.html" class="topsubnav">Donations</a>'
menu3[2]='<a href="../donate/corp_giving.html" class="topsubnav">Corporate Giving</a>'
menu3[3]='<a href="../donate/event_sponsorships.html" class="topsubnav">Event Sponsorships</a>'

var menu4=new Array()
menu4[0]='<a href="../press_room.html" class="topsubnav">Press Room</a>'
menu4[1]='<a href="../streamer_news.html" class="topsubnav">Streamer newsletter</a>'
menu4[2]='<a href="../enews.html" class="topsubnav">E-newsletters/E-alerts</a>'
menu4[3]='<a href="../reports_papers.html" class="topsubnav">Reports & Papers</a>'

var menu5=new Array()
menu5[0]='<a href="../projects.html#science" class="topsubnav">Science & Technical</a>'
menu5[1]='<a href="../projects.html#law" class="topsubnav">Law, Advocacy & Policy</a>'
menu5[2]='<a href="../projects.html#planning" class="topsubnav">Planning & Design</a>'
menu5[3]='<a href="../projects.html#edu" class="topsubnav">Education & Outreach</a>'

var menu6=new Array()
menu6[0]='<a href="../volunteer.html" class="topsubnav">Volunteer</a>'
menu6[1]='<a href="../alert_main_page.html" class="topsubnav">Take Action</a>'
menu6[2]='<a href="../events.html" class="topsubnav">Events</a>'
menu6[3]='<a href="../rc/rivercurrenthome.html" class="topsubnav">River Current E-newsletter</a>'

		
var menuwidth='190px' //default menu width
var menubgcolor='#546bb9'  //menu bgcolor
var disappeardelay=250  //menu disappear speed onMouseout (in miliseconds)
var hidemenu_onclick="yes" //hide menu when user clicks within menu?

/////No further editting needed

var ie4=document.all
var ns6=document.getElementById&&!document.all

if (ie4||ns6)
document.write('<div id="dropmenudiv" style="visibility:hidden;width:'+menuwidth+';background-color:'+menubgcolor+'" onMouseover="clearhidemenu()" onMouseout="dynamichide(event)"></div>')

function getposOffset(what, offsettype){
var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
var parentEl=what.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
}


function showhide(obj, e, visible, hidden, menuwidth){
if (ie4||ns6)
dropmenuobj.style.left=dropmenuobj.style.top="-500px"
if (menuwidth!=""){
dropmenuobj.widthobj=dropmenuobj.style
dropmenuobj.widthobj.width=menuwidth
}
if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
obj.visibility=visible
else if (e.type=="click")
obj.visibility=hidden
}

function iecompattest(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
var edgeoffset=-0
if (whichedge=="rightedge"){
var windowedge=ie4 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth
}
else{
var topedge=ie4 && !window.opera? iecompattest().scrollTop : window.pageYOffset
var windowedge=ie4 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure){ //move up?
edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight
if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure) //up no good either?
edgeoffset=dropmenuobj.y+obj.offsetHeight-topedge
}
}
return edgeoffset
}

function populatemenu(what){
if (ie4||ns6)
dropmenuobj.innerHTML=what.join("")
}


function dropdownmenu(obj, e, menucontents, menuwidth){
if (window.event) event.cancelBubble=true
else if (e.stopPropagation) e.stopPropagation()
clearhidemenu()
dropmenuobj=document.getElementById? document.getElementById("dropmenudiv") : dropmenudiv
populatemenu(menucontents)

if (ie4||ns6){
showhide(dropmenuobj.style, e, "visible", "hidden", menuwidth)
dropmenuobj.x=getposOffset(obj, "left")
dropmenuobj.y=getposOffset(obj, "top")
dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
}

return clickreturnvalue()
}

function clickreturnvalue(){
if (ie4||ns6) return false
else return true
}

function contains_ns6(a, b) {
while (b.parentNode)
if ((b = b.parentNode) == a)
return true;
return false;
}

function dynamichide(e){
if (ie4&&!dropmenuobj.contains(e.toElement))
delayhidemenu()
else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
delayhidemenu()
}

function hidemenu(e){
if (typeof dropmenuobj!="undefined"){
if (ie4||ns6)
dropmenuobj.style.visibility="hidden"
}
}

function delayhidemenu(){
if (ie4||ns6)
delayhide=setTimeout("hidemenu()",disappeardelay)
}

function clearhidemenu(){
if (typeof delayhide!="undefined")
clearTimeout(delayhide)
}

if (hidemenu_onclick=="yes")
document.onclick=hidemenu