/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
*/

var offsetfrommouse=[0,0]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
//var offsetfrommouse=[15,25]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var offset = 130; //offset je velicina slike preko koje se radi mouseover (thumbnail)
/*document.onmousemove=getMouseCoordinates;*/

/**
*identify which event is supported
* Based on that collect pageX and pageY properties of the event object
* pageX and pageY gets the X and Y cursor coordinates
*/
/*function getMouseCoordinates(event)
{
ev = event || window.event;

offsetfrommouse = [0,0];
}*/


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;
var t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;

function animate()
{
var elem = document.getElementById('progress');
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;
elem.style.left = pos;
elem.style.width = len;
}
}

function remove_loading() {
this.clearInterval(t_id);
var targelem = document.getElementById('loader_container');
targelem.style.display='none';
targelem.style.visibility='hidden';
var t_id = setInterval(animate,60);
}
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="-2000px"
	clearTimeout(timer);
}

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

    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 = '<div class="border_preview" style="margin-left:10px; border: 1px solid #CCCCCC; background-color: #ffffff; "><div id="loader_container"><div id="loader"><div id="loader_bg">'+loading+'...<div id="progress"></div></div></div></div>';
		newHTML = newHTML + '<h2 style="font-family:Verdana; font-size: 14px; color: black; text-align:center;">' + ' '+title + '</h2>'
		
    	newHTML = newHTML + '<div class="preview_temp_load" style="margin-left:10px; margin-right:10px; margin-bottom:10px; "><img onload="javascript:remove_loading();" src="' + imagename + '" border="0"></div>';
		newHTML = newHTML + '</div>'; 
		
		/*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]
	/*alert(truebody().scrollLeft+truebody().clientWidth);
	alert(pageXOffset+window.innerWidth);
	 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 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)
	pom = -(2*offset);
	//alert(pageXOffset+window.innerWidth);
	
	var cedevita = document.getElementById('cedevita');
	
	
	/*alert(window.innerWidth);*/
	//da li je FF
	if (typeof e != "undefined"){
		//alert('ff');
		//proveravamo rezoluciju i setujemo offset preko pom promenljive
		if((docwidth+8) <= 1024)
		{
			//alert('Velicina manja od 1024')
			pom = 0;
			
		}
		if((docwidth+8) <= 1280 && (docwidth+8)>1024)
		{
			//alert('Velicina manja od 1280')
			pom = -offset;
			
		}
		//koordinate gde ce biti pomeren prozor sa slikom
		xcoord = e.pageX+pom;
		ycoord = e.pageY-defaultimagewidth;
		//cedevita.innerHTML = 'FF x kordinata: '+e.pageX +' ykordinata : '+e.pageY + 'sirina: '+docwidth+'visina'+docheight
		
	}
	//da li je IE
	if (typeof window.event != "undefined"){
		//alert('ie');
			if((docwidth+20) <= 1024)
		{
			//alert('Velicina manja od 1024')
			pom = 0;
			
		}
		if((docwidth+20) <= 1280 && (docwidth+20)>1024)
		{
			//alert('Velicina manja od 1280')
			pom = -offset;
			
		}
		//koordinate gde ce biti pomeren prozor sa slikom
		xcoord = event.clientX+pom;
		ycoord = document.documentElement.scrollTop + event.clientY-defaultimageheight;
		//cedevita.innerHTML = 'IE x kordinata: '+event.clientX +' ykordinata : '+event.clientY + ' sirina: '+docwidth+'visina'+docheight
		
	}
	/*alert(xcoord);*/
	/*alert(ycoord);*/
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}