var disappeardelay=250  //menu disappear speed onMouseout (in miliseconds)
var enableanchorlink=0 //Enable or disable the anchor link when clicked on? (1=e, 0=d)
var hidemenu_onclick=1 //hide menu when user clicks within menu? (1=yes, 0=no)

/////No further editting needed

var ie5=document.all
var ns6=document.getElementById&&!document.all

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){
if (ie5||ns6)
dropmenuobj.style.left=dropmenuobj.style.top=-500
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=ie5 && !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=ie5 && !window.opera? iecompattest().scrollTop : window.pageYOffset
var windowedge=ie5 && !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 dropdownmenu(obj, e, dropmenuID, MouseImg){
  if (window.event) event.cancelBubble=true
  else if (e.stopPropagation) e.stopPropagation()
  if (typeof dropmenuobj!="undefined") //hide previous menu
    dropmenuobj.style.visibility="hidden"
		turnOffAll()
		//turnOff(MouseImg)
  clearhidemenu()
  if (ie5||ns6){
		turnOn(MouseImg)
    obj.onmouseout=delayhidemenu
    dropmenuobj=document.getElementById(dropmenuID)
    if (hidemenu_onclick) dropmenuobj.onclick=function(){dropmenuobj.style.visibility='hidden'}
    dropmenuobj.onmouseover=clearhidemenu
    dropmenuobj.onmouseout=ie5? function(){ dynamichide(event)} : function(event){ dynamichide(event)}
    showhide(dropmenuobj.style, e, "visible", "hidden")
    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 ((ie5||ns6) && !enableanchorlink) 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 (ie5&&!dropmenuobj.contains(e.toElement))
delayhidemenu()
else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
delayhidemenu()
}

function delayhidemenu(){
	   
delayhide=setTimeout("dropmenuobj.style.visibility='hidden'; turnOffAll()",disappeardelay)
//delayhide=setTimeout("dropmenuobj.style.visibility='hidden'; turnOff(MouseImg)",disappeardelay)
}

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

//MOUSE OVER FUNCTIONS
if (document.images) {

  homeon = new Image();
  homeon.src = "nav/home_on.gif";
  homeoff = new Image();
  homeoff.src = "nav/home_off.gif";

  bioon = new Image();
  bioon.src = "nav/bio_on.gif";
  biooff = new Image();
  biooff.src = "nav/bio_off.gif";

  gallerieson = new Image();
  gallerieson.src = "nav/galleries_on.gif";
  galleriesoff = new Image();
  galleriesoff.src = "nav/galleries_off.gif";

  sketcheson = new Image();
  sketcheson.src = "nav/sketches_on.gif";
  sketchesoff = new Image();
  sketchesoff.src = "nav/sketches_off.gif";

  appearanceson = new Image();
  appearanceson.src = "nav/appearances_on.gif";
  appearancesoff = new Image();
  appearancesoff.src = "nav/appearances_off.gif";

  contacton = new Image();
  contacton.src = "nav/contact_on.gif";
  contactoff = new Image();
  contactoff.src = "nav/contact_off.gif";
}
function turnOn(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + 'on.src');
  }
}
function turnOff(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + 'off.src');
  }
}
function turnOffAll() {
  if (document.images) {
    //document.image1.src = image1off.src;
    document.galleries.src = galleriesoff.src;
    //document.image3.src = image3off.src;
    //document.image4.src = image4off.src;
  }
}