// JavaScript Document

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function getPosition(targ){
	var curleft = 0;
	var curtop = 0;

	try {
		if (targ.offsetParent) {
			do {
				curleft += targ.offsetLeft;
				curtop += targ.offsetTop;
			} while (targ = targ.offsetParent);
		}
	}
	catch (err){}
	
	return [curleft,curtop];
}

function getEventTarget(e){
	var targ;

	if (!e) var e = window.event;

	if (e.target) targ = e.target;
	else if (e.srcElement) targ = e.srcElement;

	if (targ.nodeType == 3) // defeat Safari bug
		targ = targ.parentNode;

	return targ;
}

var _oldTextColor = '';
function changeTextColor(targ, newcolor){
	if(newcolor != ''){
		_oldTextColor = targ.style.color;
		targ.style.color = newcolor;
	}
	else
		targ.style.color = _oldTextColor;
}

function movePointer(e) {

	var targ = getEventTarget(e);
	var Pos = getPosition(targ);

	var p = document.getElementById("pointer");

	//p.style.left = (Pos[0] - 25) + 'px';
	//p.style.top  = Pos[1] + 'px';

	slideY(p, Pos[1]);

	if(!isCurrentMenuItem(targ))
		changeTextColor(targ, '#fff');

	targ.style.cursor = 'pointer';

	e.cancelBubble = true;
	if (e.stopPropagation) e.stopPropagation();
}

function returnPointer(e){
	var targ = getEventTarget(e);
	targ.style.cursor = 'default';

	if(!isCurrentMenuItem(targ))
		changeTextColor(targ, '');

	slideY(document.getElementById("pointer"), _initialPointerPos[1]);
	/*

	var targ = getEventTarget(e);

	var p = document.getElementById("pointer");
	p.style.display = "none";

   */

	e.cancelBubble = true;
	if (e.stopPropagation) e.stopPropagation();
}

function getElementsByStyleClass (className) {
	var all = document.all ? document.all : document.getElementsByTagName('*');
	var elements = new Array();
	for (var e = 0; e < all.length; e++)
		if (all[e].className == className)
			elements[elements.length] = all[e];

	return elements;
}

var _currentMenuItem;
function registerEvents(){
	var links = getElementsByStyleClass("SideNavLink");

	if (links.length == 0){
		document.getElementById("pointer").style.display = "none";
		return;
	} 
	
	for(var i = 0; i < links.length; i++)
	{
		if(document.all){
			links[i].attachEvent('onmouseover', movePointer)
			links[i].attachEvent('onmouseout', returnPointer)
		}
		else{
			links[i].addEventListener('mouseover', movePointer, false);
			links[i].addEventListener('mouseout', returnPointer, false);
		}

		if(isCurrentMenuItem(links[i]))
			_currentMenuItem = links[i];
	}
	if(!_currentMenuItem || _currentMenuItem == 'undefined')
		_currentMenuItem = links[0];
	//set initial pointer location
	var p = document.getElementById("pointer");
	_initialPointerPos = getPosition(_currentMenuItem);
	var browserCorrection =  document.all ? 0 : -3;
	p.style.left = (_initialPointerPos[0] - 10) + 'px';
	p.style.top  = (_initialPointerPos[1]  + browserCorrection) + 'px';

	if(getCurrentMenuLinkFile(_currentMenuItem) == _currentFile)
		changeTextColor(_currentMenuItem, '#fff');
}

var _currentFile = '';
var _initialPointerPos;


function isCurrentMenuItem(targ){
	var attribs = targ.attributes;
	var itemvalue = attribs.getNamedItem("onclick").value;
	var menulinkfile = itemvalue.substr(itemvalue.indexOf("'")+1, itemvalue.lastIndexOf("'") - itemvalue.indexOf("'")-1);
	return (menulinkfile == _currentFile);
}

function getCurrentMenuLinkFile(targ){
	var attribs = targ.attributes;
	var itemvalue = attribs.getNamedItem("onclick").value;
	var menulinkfile = itemvalue.substr(itemvalue.indexOf("'")+1, itemvalue.lastIndexOf("'") - itemvalue.indexOf("'")-1);
	return menulinkfile;
}

function navigateTo(clickedTarg,url){
	clickedTarg.style.color = _oldTextColor;
	window.location.href = url;
}

function positionContentMainImage(){
	var d = document.getElementById("content");
	var m = document.getElementById("main");
	var img = document.getElementById("mainImage");
	var browserFix = document.all ? 2 : 12;

	if(d.offsetHeight){
		m.style.height = d.offsetHeight + 'px';
		img.style.marginTop = (parseInt(d.offsetHeight) - parseInt(img.style.height) - browserFix) + "px";
	}
	else if(d.style.pixelHeight){
		m.style.height = d.style.pixelHeight;
		img.style.marginTop = (parseInt(d.style.pixelHeight) - parseInt(img.style.height) - browserFix) + "px";
	}

	img.style.marginLeft = "30px";
}

function resizeEventHandler(){
	try{
		_initialPointerPos = getPosition(_currentMenuItem);
		p = document.getElementById("pointer");
		p.style.left = (_initialPointerPos[0] - 10) + 'px';
	}
	catch (err) {}
}


function slideY (targ, end){
	slideY.obj = targ.style; //document.layers ? document.layers[id] : document.all? document.all[id].style : document.getElementById ? document.getElementById(id).style : null;
	slideY.current = getPosition(targ)[1];
	slideY.end = document.all ? end : end - 3;
	slideY.y = 0;
	slideY.ya = 0;
	
	if(slideY.obj){
		slideY.ya = slideY.end - slideY.current;
		slideY.y = slideY.ya < 0 ? -1 : 1;
		slideY.ya = slideY.y * slideY.ya;
		if (slideY.ya > slideY.speed){
			slideY.going = 1;
			slideY.doit();
		}
	}
}

slideY.doit = function() {
	slideY.obj.top = parseInt(slideY.obj.top) + slideY.y * slideY.speed + slideY.px;
	
	if(slideY.ya > slideY.speed){
		slideY.ya -= slideY.speed;
		setTimeout("slideY.doit()", slideY.ya < 5 * slideY.speed ? 30 : slideY.ya < 10 * slideY.speed ? 20 : 15);
	}
	else{
		slideY.going = 0;
		slideY.obj.top = slideY.end + slideY.px;
	}
}
//Configure speed here (1-5). Note: the x in calls for slideY(id, x) should be evenly divisible by the speed value:
slideY.speed = 5;
slideY.px = document.layers ? '' : 'px';

function doVoid(){
	return false;
}