var x = 0;
var y = 0;
var tx=0;
var ty=0;
var tablex=20;
var tabley=30;
var mode=0;
var interval;
var status=0;
var mini = 0;
// var folders = new Array();


if (document.layers) { // Netscape
    document.captureEvents(Event.MOUSEMOVE);
    document.onmousemove = captureMousePosition;
} else if (document.all) { // Internet Explorer
    document.onmousemove = captureMousePosition;
} else if (document.getElementById) { // Netscape 6
    document.onmousemove = captureMousePosition;
}


xMousePos = 0; // Horizontal position of the mouse on the screen
yMousePos = 0; // Vertical position of the mouse on the screen
xMousePosMax = 0; // Width of the page
yMousePosMax = 0; // Height of the page

function captureMousePosition(e) {
	if (document.layers) {
		xMousePos = e.pageX;
		yMousePos = e.pageY;
		xMousePosMax = window.innerWidth+window.pageXOffset;
		yMousePosMax = window.innerHeight+window.pageYOffset;
	} else if (document.all) {
		xMousePos = window.event.x+document.body.scrollLeft;
		yMousePos = window.event.y+document.body.scrollTop;
		xMousePosMax = document.body.clientWidth+document.body.scrollLeft;
		yMousePosMax = document.body.clientHeight+document.body.scrollTop;
	} else if (document.getElementById) {
		xMousePos = e.pageX;
		yMousePos = e.pageY;
		xMousePosMax = window.innerWidth+window.pageXOffset;
		yMousePosMax = window.innerHeight+window.pageYOffset;
	}
}

function moveTable()
{
	document.getElementById("content_table").style.left = (xMousePos - tx) + "px";
	document.getElementById("content_table").style.top = (yMousePos - ty) + "px";
}

function initMoveTable(step)
{
	if (status==0 && step==0)
	{
		tx = xMousePos-tablex;
		ty = yMousePos-tabley;
		interval = setInterval("moveTable()", 20);
		status = 1;
	}
	else if (step==1)
	{
		clearInterval(interval);
		tablex = xMousePos-tx;
		tabley = yMousePos-ty;
		status = 0;
	}
}

function resizeTable()
{
	document.getElementById("content_table").style.width = (xMousePos + tx) + "px";
}

function initResizeTable(step)
{
	if (status==0 && step==0)
	{
		tx = document.getElementById("content_table").offsetWidth-xMousePos;
		// alert(document.getElementById("content_table").offsetHeight);
		interval = setInterval("resizeTable()", 20);
		status = 1;
	}
	else if (step==1)
	{
		clearInterval(interval);
		status = 0;
	}
}

function minimize()
{
	if (mini == 0)
	{
		mini = 1;
		document.getElementById("content_div").style.display="none";
		document.getElementById("content_table").style.height = "auto";
		document.getElementById("minimize_img").src = "./nav_img/maximize.gif";
	}
	else
	{
		mini = 0;
		document.getElementById("content_div").style.display="table";
		document.getElementById("content_div").style.width="100%";
		document.getElementById("minimize_img").src = "./nav_img/minimize.gif";
		document.getElementById("content_table").style.height = "auto";
	}
}


function showMiniature(url)
{
	document.getElementById("image_thumb").src = url;
	document.getElementById("image_thumb").style.opacity = "0.8";
	document.getElementById("image_thumb").style.filter = "alpha(opacity=80)";
	document.getElementById("image_div").style.left = (xMousePos+5) + "px";
	document.getElementById("image_div").style.top = (yMousePos+5) + "px";
	document.getElementById("image_thumb").style.visibility="visible";
}

function hideMiniature()
{
	document.getElementById("image_thumb").style.visibility="hidden";
}

// Changes an arrow fill when the mouse is over it
function overlink(obj, status)
{
	if (obj.parentNode.lastChild.innerHTML == "")
	{
		if (status == 1)
			obj.childNodes.item(0).src='nav_img/f_010.gif';
		else
			obj.childNodes.item(0).src='nav_img/f_000.gif';
	}
	else
	{
		if (status == 1)
			obj.childNodes.item(0).src='nav_img/f_110.gif';
		else
			obj.childNodes.item(0).src='nav_img/f_100.gif';
	}
}


// Functions to open a directory
var xmlhttp;
var span;

function openroot()
{
	url = ".";
	span = document.getElementById('root_span');
	if (span.innerHTML == "")
	{
		span.innerHTML = 'loading...<br />';
		completeurl = './dory_getdir.php?dirname='+url+'&tab=0&color=1';
		// code for Mozilla, etc.
		if (window.XMLHttpRequest)
		{
			xmlhttp=new XMLHttpRequest();
			xmlhttp.onreadystatechange=rootStateChange;
			xmlhttp.open("GET",completeurl,true);
			xmlhttp.send(null);
		}
		// code for IE
		else if (window.ActiveXObject)
		{
			xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
			if (xmlhttp)
			{
				xmlhttp.onreadystatechange=rootStateChange;
				xmlhttp.open("GET",completeurl,true);
				xmlhttp.send();
			}
		}
	}
}
function rootStateChange()
{
	if (xmlhttp.readyState==4)
	{
		if (xmlhttp.status==200)
			span.innerHTML = xmlhttp.responseText;
		else
			span.innerHTML = "Problem retrieving data:" + xmlhttp.statusText + "<br />";
	}
}

function opendir(obj, tab, color)
{
	span = obj.parentNode.lastChild;
	if (span.innerHTML == "")
	{

		obj.parentNode.lastChild.innerHTML = '<br />loading...<br />';
		obj.childNodes.item(0).src = 'nav_img/f_111.gif';

		if (span.previousSibling.value != "")
			span.innerHTML = span.previousSibling.value;
		else
		{
		completeurl = './dory_getdir.php?dirname='+span.title+'&tab='+tab+'&color='+color;
		// code for Mozilla, etc.
		if (window.XMLHttpRequest)
		{
			xmlhttp=new XMLHttpRequest();
			xmlhttp.onreadystatechange=stateChange;
			xmlhttp.open("GET",completeurl,true);
			xmlhttp.send(null);
		}
		// code for IE
		else if (window.ActiveXObject)
		{
			xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
			if (xmlhttp)
			{
				xmlhttp.onreadystatechange=stateChange;
				xmlhttp.open("GET",completeurl,true);
				xmlhttp.send();
			}
		}
		}
	}
	else
	{
		span.previousSibling.value = span.innerHTML;		span.innerHTML = "";
		obj.childNodes.item(0).src = 'nav_img/f_011.gif';
	}
}

function stateChange()
{
	if (xmlhttp.readyState==4)
	{
		if (xmlhttp.status==200)
		{
			span.innerHTML = xmlhttp.responseText;
		}
		else
		{
			span.innerHTML = "Problem retrieving data:" + xmlhttp.statusText + "<br />";
		}
	}
}