/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
*/
var offsetfrommouse=[15,25]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0; //duration in seconds image should remain visible. 0 for always.
var defaultimageheight = 40;	// maximum image size.
var defaultimagewidth = 40;	// maximum image size.
var timer;
function gettrailobj(){
if (document.getElementById)
return document.getElementById("preview_div").style
}

function gettrailobjnostyle(){
if (document.getElementById)
return document.getElementById("preview_div")
}

function truebody(){
return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function hidetrail(){	
	gettrailobj().display= "none";
	document.onmousemove=""
	gettrailobj().left="-500px"
	clearTimeout(timer);
}

function showtrail(imagename,title,desc,width,height){
//	alert(imagename);
	i = imagename	
	t = title
	d = desc
	w = width
	h = height
	timer = setTimeout("show('"+i+"',t,d,w,h);",200);
}

function show(imagename,title,desc,width,height){
//	alert(imagename);
    var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0]
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)
	if( (navigator.userAgent.indexOf("Konqueror")==-1  || navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1)) && (docwidth>650 && docheight>500)) {
		( width == 0 ) ? width = defaultimagewidth: '';
		( height == 0 ) ? height = defaultimageheight: '';
		width+=30
		height+=55
		defaultimageheight = height
		defaultimagewidth = width
		document.onmousemove=followmouse; 
		newHTML = '<table class="border_preview" width="'+width+'" height='+height+'"><tr><td><div id="loader_container"><div id="loader"><div align="center">Зургийг уншиж байна...</div><div id="loader_bg"><div id="preview_progress"></div></div></div></div>';
    	newHTML = newHTML + '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0"></div>';
		newHTML = newHTML + '<div class="title_h2" stye="font-size:80px;">' + title + '</div>';
		if (desc!='') 	newHTML = newHTML + '<div class="prev_text">' + desc + '</div>';		
		newHTML = newHTML + '</td></tr></table>'; 
		if(navigator.userAgent.indexOf("MSIE")!=-1 && navigator.userAgent.indexOf("Opera")==-1 ){
			newHTML = newHTML+'<iframe src="about:blank" scrolling="no" frameborder="0" width="'+width+'" height="'+height+'"></iframe>';
		}		
		gettrailobjnostyle().innerHTML = newHTML;
		gettrailobj().display="block";
	}
}

function followmouse(e){
	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]
	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)
	if (typeof e != "undefined"){
		if (docwidth - e.pageX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1]){
			ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));
		} else {
			ycoord += e.pageY;
		}
	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1])){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}
gettrailobj().left=xcoord+"px";
gettrailobj().top=ycoord+"px";
}

var t_id;
t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;
function animate()
{
var elem = document.getElementById('preview_progress');
//elem.innerHTML = '<';
if(elem != null) {
if (pos==0) len += dir;
if (len>32 || pos>79) pos += dir;
if (pos>79) len -= dir;
if (pos>79 && len==0) pos=0;
//alert(elem.style.left);
if ( elem.style ) elem.style.left = pos+'px';
if ( elem.style )elem.style.width = len+'px';
//document.forms.guestbook.gmail_text.value += 'left : '+ elem.style.left + 'w : ' + elem.style.width + '\n';
}
}

function remove_loading() {
this.clearInterval(t_id);
var targelem = document.getElementById('loader_container');
targelem.style.display='none';
targelem.style.visibility='hidden';
//t_id = setInterval(animate,60);
}
	var timerId = null
	var obj = new Array()
	function prepareShowAlt(event){
		idd = this.id
		if (idd.search("title_") == 0){
			idd = idd.substring(6)
			if ((typeof titles != "undefined") && (typeof titles[idd] != "undefined") && titles[idd].length > 0){
				text = titles[idd]
			}else{
				return;
			}
		}else{
			return
		}
		x = 0;
		y = 0;
		oX = 0;
		if (document.all){
			x = window.event.clientX
			y = window.event.clientY + document.body.scrollTop
		}else{
			x = event.clientX - oX
			y = event.clientY + window.scrollY
		}
		x += Math.round(xs[idd])
		y += Math.round(ys[idd])

		obj = new Array()
		obj[0] = text
		obj[1] = x
		obj[2] = y
		timerId = setTimeout("showAlt()", 500);
	}
function showAlt(){
	text = obj[0]
	x = obj[1]
	y = obj[2]
	altd = document.getElementById('altDiv')
	altd.innerHTML = "<table cellpadding=3 cellspacing=0 style='background-color: #EEF6FF; border: solid #6A91B4 1px; font-family: tahoma;" + (text.length > 30 ? "width: 200px;" : "") +"'><tr><td style='color: #414041; font-size: 11px;'>" + text + "</td></tr></table>"
	altd.style.left = Math.min(x + 10,document.body.clientWidth-201)
	altd.style.top = y
	altd.style.display = 'inline'
}
function hideAlt(){
	obj = new Array()
	clearTimeout(timerId)
	altd = document.getElementById('altDiv')
	altd.innerHTML = ""
	altd.style.left = -100
	altd.style.top = -100
	altd.style.display = 'none'
}
function initAlts(){
	arr = document.getElementsByName('title')
	titles = new Array()
	xs = new Array()
	ys = new Array()
	for (i=0; i<arr.length; i++){
		itemm = arr.item(i)
		itemm.onmouseover = prepareShowAlt
		itemm.onmouseout = hideAlt
		itemm.id = "title_" + i
		titles[i] = itemm.title
		xs[i] = (typeof itemm.xs == 'undefined' ? 0 : itemm.xs)
		ys[i] = (typeof itemm.ys == 'undefined' ? 0 : itemm.ys)
		itemm.title = ""
	}
}