// JavaScript Document

/***********************************************
* Pop-it menu- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var defaultMenuWidth="156px" //set default menu width.

var linkset=new Array()
//SPECIFY MENU SETS AND THEIR LINKS. FOLLOW SYNTAX LAID OUT
//linkset[0]+='<hr>' //Optional Separator 

linkset[0]='<a href="min_knowledge.htm"><img src="PICS/min_knowledge.gif"></a>'
linkset[0]+='<a href="begin_test.htm"><img src="PICS/begining_test.gif"></a>'

linkset[1]='<a href="unit.htm"><img src="PICS/text.gif"></a>'
linkset[1]+='<a href="vocabulary.htm"><img src="PICS/vocabulary.gif"></a>'


////No need to edit beyond here

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

var temp;
var dir_prefix = "COMMON/PICS/"
var img_postfix = ".gif"
var img_roll_postfix = "_roll.gif"
var left_offset = -12 // according to menu abs position
var top_offset = 32 // according to menu abs position


if (ie5||ns6)
document.write('<div id="popitmenu" onMouseover="clearhidemenu();" onMouseout="dynamichide(event)"></div>')

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


function iecompattest(){
return (document.compatMode && document.compatMode.indexOf("CSS")!=-1)? document.documentElement : document.body
}

function showmenu(e, which, id, optWidth){
	if (temp != undefined) {
		var objItem = document.getElementById(temp)
		objItem.src=dir_prefix + temp +img_postfix
	}
	temp = id;

var objItem = document.getElementById(id)
objItem.src= dir_prefix + id+ img_roll_postfix

if (which == '') return;


if (!document.all&&!document.getElementById)
return
clearhidemenu()
menuobj=ie5? document.all.popitmenu : document.getElementById("popitmenu")
menuobj.innerHTML=which
menuobj.style.width=(typeof optWidth!="undefined")? optWidth : defaultMenuWidth
menuobj.contentwidth=menuobj.offsetWidth
menuobj.contentheight=menuobj.offsetHeight
eventX=ie5? event.clientX : e.clientX
eventY=ie5? event.clientY : e.clientY
//Find out how close the mouse is to the corner of the window
var rightedge=ie5? iecompattest().clientWidth-eventX : window.innerWidth-eventX
var bottomedge=ie5? iecompattest().clientHeight-eventY : window.innerHeight-eventY
menuobj.style.left=(getLeft(id)+left_offset)+"px"
menuobj.style.top=(getTop(id)+top_offset)+"px"
menuobj.style.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.style.visibility="hidden"
	 var objItem = document.getElementById(temp)
	 objItem.src=dir_prefix + temp +img_postfix
	}
}

function dynamichide(e){
if (ie5&&!menuobj.contains(e.toElement))
hidemenu(temp)
else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
hidemenu(temp)
}

function delayhidemenu(){
	if (typeof menuobj=="undefined") {
		var objItem = document.getElementById(temp)
		objItem.src=dir_prefix + temp +img_postfix
		return;
	}

	if (menuobj.style.visibility=="hidden") {
		var objItem = document.getElementById(temp)
		objItem.src=dir_prefix + temp +img_postfix
		return;
	}
delayhide=setTimeout("hidemenu()",500)
}

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

function getLeft(id) {
var objItem = document.getElementById(id)
var objParent = null
var intX = 0
do
 {
  intX += objItem.offsetLeft
  objParent = objItem.offsetParent.tagName
  objItem = objItem.offsetParent
 }
while(objParent != 'BODY')

return intX
}

function getTop(id) {
var objItem = document.getElementById(id)
var objParent = null
var intY = 0
do
 {
  intY += objItem.offsetTop
  objParent = objItem.offsetParent.tagName
  objItem = objItem.offsetParent
 }
while(objParent != 'BODY')

return intY
}

if (ie5||ns6)
document.onclick=hidemenu

//Layer appearence - do not remove!
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}

//Jump menu forwarding
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function close_win(evt){
	var key = (typeof evt.which != "undefined") ? evt.which : event.keyCode;
	if(key==27)	 window.close();
}