/* - dyntopnav-menu-dropdowns.js - */
// http://foodandwaterwatch.org/portal_javascripts/dyntopnav-menu-dropdowns.js?original=1
var menuwidth='165px';var menubgcolor='lightyellow';var disappeardelay=250;var hidemenu_onclick="yes";var ie4=document.all;var safari=navigator.userAgent.indexOf('Safari')>0;var ns6=document.getElementById&&!document.all;if(ie4||ns6)
document.write('<div id="dropmenudiv" style="visibility:hidden" 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=-500;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){edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight
if((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure)
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(menucontents.length==0)
return clickreturnvalue();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){if(!ns6||safari)
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"
if(ns6&&!safari) showhide(dropmenuobj.style,e,"visible","hidden",menuwidth)}
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