var objNavMenu = null;
var prevObjNavMenu = null;
var prevObjDropMenu = null;
var numDropMenu = 8;
////// link styles
var bgLinkColor = '#000';
var bgLinkHover = '#000'
var bgLinkActive = '#000'
var linkColor = '#fff'
var linkHover = '#fff'
var linkActive = '#fff'

var isIE = null;
if (navigator.appName.indexOf('Microsoft Internet Explorer') != -1) isIE=1;

function initDropMenu () {
	document.onclick = hideDropMenu;
	for (i=1; i<=numDropMenu; i++) {
		menuName = 'dropMenu' + i;
		navName = 'navMenu' + i;
		objDropMenu = document.getElementById(menuName);
		objNavMenu = document.getElementById(navName);
		objDropMenu.style.visibility = 'hidden';
		objNavMenu.onmouseover =  showDropMenu;
		objNavMenu.onmouseout = menuOut;
		objNavMenu.onclick = showDropMenu;
	}
	objNavMenu = null;
	return;
}


function menuOut (e) {
	document.onclick = hideDropMenu;
	outObjNavMenu = document.getElementById(this.id);
	if (outObjNavMenu != objNavMenu) {
		outObjNavMenu.style.color = linkColor;
		outObjNavMenu.style.backgroundColor = bgLinkColor;
	}
}

function showDropMenu(e) {
	menuName = 'drop' + this.id.substring(3,this.id.length);
	objDropMenu = document.getElementById(menuName);
	if (prevObjDropMenu == objDropMenu) {
			hideDropMenu();
		return;
	}
	if (prevObjDropMenu != null) hideDropMenu();
	objNavMenu = document.getElementById(this.id);
	if ((prevObjNavMenu != objNavMenu ) || (prevObjDropMenu == null)) {
		objNavMenu.style.color = linkActive;
		objNavMenu.style.backgroundColor = bgLinkActive;
	}
	
	if (objDropMenu) {
		xPos = objNavMenu.offsetParent.offsetLeft + objNavMenu.offsetLeft;
		yPos = objNavMenu.offsetParent.offsetTop + objNavMenu.offsetParent.offsetHeight;
		if (isIE) {
			yPos -= 1;
			xPos -= 6;
		}
		objDropMenu.style.left = xPos + 'px';
		objDropMenu.style.top = yPos + 'px';
		objDropMenu.style.visibility = 'visible';
		prevObjDropMenu = objDropMenu;
		prevObjNavMenu = objNavMenu;
	}
}

function hideDropMenu() {
	document.onclick = null;
	if (prevObjDropMenu) {
		prevObjDropMenu.style.visibility = 'hidden';
		prevObjDropMenu = null;
		prevObjNavMenu.style.color = linkColor;
		prevObjNavMenu.style.backgroundColor = bgLinkColor;
	}
	objNavMenu = null;
}

// JavaScript Document

function fetchData(url,dataToSend,objectID){
	var pageRequest = false
	if (window.XMLHttpRequest) {
		pageRequest = new XMLHttpRequest()
	}
	else if (window.ActiveXObject){ 
		try {
			pageRequest = new ActiveXObject("Msxml2.XMLHTTP")
		} 
		catch (e) {
			try{
				pageRequest = new ActiveXObject("Microsoft.XMLHTTP")
			}
			catch (e){}
		}
	}
	else return false
	pageRequest.onreadystatechange=function() {	
		filterData(pageRequest,objectID)
}
	if (dataToSend) {		
		var sendData = 'sendData=' + dataToSend;
		pageRequest.open('POST',url,true);
    pageRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
   	pageRequest.send(sendData);
	}
	else {
		pageRequest.open('GET',url,true)
		pageRequest.send(null)	
	}
}

function changePage(pageName, objectID)
{
	fetchData(pageName,null,objectID);
}

function filterData(pageRequest, objectID)
{
	if (pageRequest.readyState == 4 && (pageRequest.status==200 || window.location.href.indexOf("http")==-1))
	document.getElementById(objectID).innerHTML=pageRequest.responseText;
}

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

 window.onload=initDropMenu;