//Pop-it menu- By Dynamic Drive
//For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
//This credit MUST stay intact for use

var linkset=new Array()
//SPECIFY MENU SETS AND THEIR LINKS. FOLLOW SYNTAX LAID OUT

linkset[0]='<div align="left"><a href="bula.htm" class="MenuOver">La Bula</a></div>'
linkset[0]+='<div align="left"><a href="oasivalmanera.htm" class="MenuOver">Valmanera</a></div>'
linkset[0]+='<div align="left"><a href="oasiboscolago.htm" class="MenuOver">Boscolago</a></div>'
linkset[0]+='<div align="left"><a href="oasiverneto.htm" class="MenuOver">Il Verneto</a></div>'
linkset[0]+='<div align="left"><a href="oasivalbormida.htm" class="MenuOver">Val Bormida</a></div>'
linkset[0]+='<div align="left"><a href="http://www.wwf.it/client/render.aspx?content=0&root=1324" class="MenuOver">Forteto della Luja</a></div>'////No need to edit beyond here

var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var ns6=document.getElementById&&!document.all
var ns4=document.layers

function showmenu(e,which){

	if (!document.all&&!document.getElementById&&!document.layers)
		return

	clearhidemenu()

	menuobj=ie4? document.all.popmenu : ns6? document.getElementById("popmenu") : ns4? document.popmenu : ""
	menuobj.thestyle=(ie4||ns6)? menuobj.style : menuobj

	if (ie4||ns6)
		menuobj.innerHTML=which
	else{
		menuobj.document.write('<layer name=gui bgColor=#E6E6E6 width=400px onmouseover="clearhidemenu()" onmouseout="hidemenu()">'+which+'</layer>')
		menuobj.document.close()
	}

	menuobj.contentwidth=(ie4||ns6)? menuobj.offsetWidth : menuobj.document.gui.document.width
	menuobj.contentheight=(ie4||ns6)? menuobj.offsetHeight : menuobj.document.gui.document.height
	eventX=ie4? event.clientX : ns6? e.clientX : e.x
	eventY=ie4? event.clientY : ns6? e.clientY : e.y

	//Find out how close the mouse is to the corner of the window
	var rightedge=ie4? document.body.clientWidth-eventX : window.innerWidth-eventX
	var bottomedge=ie4? document.body.clientHeight-eventY : window.innerHeight-eventY

	//if the horizontal distance isn't enough to accomodate the width of the context menu
	if (rightedge<menuobj.contentwidth)
		//move the horizontal position of the menu to the left by it's width
		menuobj.thestyle.left=ie4? document.body.scrollLeft+eventX-menuobj.contentwidth : ns6? window.pageXOffset+eventX-menuobj.contentwidth : eventX-menuobj.contentwidth
	else
		//position the horizontal position of the menu where the mouse was clicked
		menuobj.thestyle.left=ie4? document.body.scrollLeft+eventX : ns6? window.pageXOffset+eventX : eventX

	//same concept with the vertical position
	if (bottomedge<menuobj.contentheight)
		menuobj.thestyle.top=ie4? document.body.scrollTop+eventY-menuobj.contentheight : ns6? window.pageYOffset+eventY-menuobj.contentheight : eventY-menuobj.contentheight
	else
		menuobj.thestyle.top=ie4? document.body.scrollTop+event.clientY : ns6? window.pageYOffset+eventY : eventY
	
	menuobj.thestyle.visibility="visible"
	return false
}

function contains_ns6(a, b) {
	//Determines if 1 element in contained in another- by Brainjar.com
	while (b.parentNode)
		if ((b = b.parentNode) == a)
			return true;
	return false;
}

function hidemenu(){
	if (window.menuobj)
		menuobj.thestyle.visibility=(ie4||ns6)? "hidden" : "hide"
}

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

function delayhidemenu(){
	if (ie4||ns6||ns4)
		delayhide=setTimeout("hidemenu()",500)
}

function clearhidemenu(){
	if (window.delayhide)
		clearTimeout(delayhide)
}

function highlightmenu(e,state){
	if (document.all)
		source_el=event.srcElement
	else if (document.getElementById)
		source_el=e.target
	if (source_el.className=="menuitems"){
		source_el.id=(state=="on")? "mouseoverstyle" : ""
	}
	else{
		while(source_el.id!="popmenu"){
			source_el=document.getElementById? source_el.parentNode : source_el.parentElement
			if (source_el.className=="menuitems"){
				source_el.id=(state=="on")? "mouseoverstyle" : ""
			}
		}
	}
}

if (ie4||ns6)
	document.onclick=hidemenu