var currDiv = null;

function cacheTreeImages(root)
{
	var tree01 = new Image(); tree01.src = root + "images/tree_c.gif";
	var tree02 = new Image(); tree02.src = root + "images/tree_ce.gif";
	var tree03 = new Image(); tree03.src = root + "images/tree_e.gif";
	var tree04 = new Image(); tree04.src = root + "images/tree_ee.gif";
	var tree05 = new Image(); tree05.src = root + "images/tree_n.gif";
	var tree06 = new Image(); tree06.src = root + "images/tree_ne.gif";
	var tree07 = new Image(); tree07.src = root + "images/tree_tc.gif";
	var tree08 = new Image(); tree08.src = root + "images/tree_tce.gif";
	var tree09 = new Image(); tree09.src = root + "images/tree_te.gif";
	var tree10 = new Image(); tree10.src = root + "images/tree_tee.gif";
	var tree11 = new Image(); tree11.src = root + "images/tree_v.gif";
}

function actBranch(divId)
{
	if(!document.layers)
	{
		var subDivId = 'sub_' + divId;
		var imgId = 'img_' + divId;
		var img = document.images[imgId];
		var imgSrc = img.src;
		var imgName = imgSrc.substr(imgSrc.lastIndexOf('/') + 1, imgSrc.length);
		switch(imgName)
		{
			case 'tree_c.gif':
				imgName = 'tree_e.gif';
				break;
			case 'tree_ce.gif':
				imgName = 'tree_ee.gif';
				break;
			case 'tree_e.gif':
				imgName = 'tree_c.gif';
				break;
			case 'tree_ee.gif':
				imgName = 'tree_ce.gif';
				break;
			case 'tree_tc.gif':
				imgName = 'tree_te.gif';
				break;
			case 'tree_te.gif':
				imgName = 'tree_tc.gif';
				break;
			case 'tree_tce.gif':
				imgName = 'tree_tee.gif';
				break;
			case 'tree_tee.gif':
				imgName = 'tree_tce.gif';
				break;
			default:
				break;
		}
		img.src = imgSrc.substr(0, imgSrc.lastIndexOf('/') + 1) + imgName;
		var subDiv = document.getElementById(subDivId);
		subDiv.style.display = (subDiv.style.display == 'none') ? '' : 'none';
		self.focus();
	}
}

function showBranch(divId)
{
	if(currDiv != null) actBranch(currDiv);
	if(currDiv == divId)
	{
		currDiv = null;
	}
	else
	{
		actBranch(divId);
		currDiv = divId;
	}
	return false;
}

function getBrowser()
{
	var Brs = navigator.appName + navigator.appVersion + navigator.userAgent;
	switch (navigator.appName)
	{
		case 'Netscape':
			if (Brs.indexOf('Opera 5',0) !=-1){return new Array('OP', 5)}
			if (Brs.indexOf('Netscape4',0) !=-1){return new Array('NN', 4)}
			if (Brs.indexOf('Netscape6',0) !=-1){return new Array('NN', 6)}
			break;
		case 'Microsoft Internet Explorer':
			if (Brs.indexOf('Opera 5',0) !=-1){return new Array('OP', 5)}
			if (Brs.indexOf('MSIE 6',0) !=-1){return new Array('IE', 6)}
			if (Brs.indexOf('MSIE 5',0) !=-1){return new Array('IE', 5)}
			if (Brs.indexOf('MSIE 4') !=-1){return new Array('IE', 4)}
			break;
		case 'Opera':
			if (Brs.indexOf('Opera/5',0) !=-1){return new Array('OP', 5)}
			break;
		//case 'Mozilla':
			//break;
		default: return new Array('Other', 0);
	}
}

function goTo(where) {
	document.location.replace(where);
	return false;
}

function openWin(url) {
	var win = open(url, 'piter', 'height=332,width=450,status=yes,toolbar=no,menubar=no,location=no,scrollbars=no');
	win.focus();
	return false;
}

function findObj(n, d) {
	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 = findObj(n, d.layers[i].document);
	if(!x && d.getElementById)
		x = d.getElementById(n);
	return x;
}