var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadedobjects=""
var rootdomain="http://"+window.location.hostname
var bustcacheparameter=""

function ajaxpage(url, containerid){
document.getElementById(containerid).innerHTML="<center>U&#269;itavam...<br><img src='loading.gif'></center>";
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari etc
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
} 
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
if (bustcachevar) //if bust caching of external page
bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
page_request.open('GET', url+bustcacheparameter, true)
page_request.send(null)
}

function loadpage(page_request, containerid){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
document.getElementById(containerid).innerHTML=page_request.responseText
}

function loadobjs(){
if (!document.getElementById)
return
for (i=0; i<arguments.length; i++){
var file=arguments[i]
var fileref=""
if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
if (file.indexOf(".js")!=-1){ //If object is a js file
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
if (file.indexOf(".php")!=-1){ //If object is a php file
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
else if (file.indexOf(".css")!=-1){ //If object is a css file
fileref=document.createElement("link")
fileref.setAttribute("rel", "stylesheet");
fileref.setAttribute("type", "text/css");
fileref.setAttribute("href", file);
}
}
if (fileref!=""){
document.getElementsByTagName("head").item(0).appendChild(fileref)
loadedobjects+=file+" " //Remember this object as being already added to page
}
}
}

function hidediv(div) { 
document.getElementById(div).style.display = 'none'; 
} 

function showdiv(div) { 
document.getElementById(div).style.display = 'block';  
} 



function load(what) {
	if (what=='vijesti') {
		ajaxpage('admin_vijesti.php','div-cont');
		ajaxpage('tools.php?t=vijesti','div-tools');
	}
	if (what=='korisnici') {
		ajaxpage('admin_users.php','div-cont');
		ajaxpage('tools.php?t=users','div-tools');
	}
	if (what=='galerija') {
		ajaxpage('admin_galerija.php','div-cont');
		ajaxpage('tools.php?t=galerija','div-tools');
	}
	if (what=='zipgal') {
	document.getElementById('div-tools').innerHtml='';
	ajaxpage('zip_gallery.php','div-tools');
	hidediv('layer');
	}
}

function deleteuser(id) {
	conf=confirm('Obrisati korisnika?');
	if (conf==true) {
	loadobjs('delete_user.php?id='+id);
	load('korisnici');
	}
}

function showuseredit(id) {
	ajaxpage('user.php?id='+id,'layer');
	showdiv('layer');
}

function shownewsedit(id) {
	ajaxpage('vijesti.php?id='+id,'layer');
	showdiv('layer');
}

function showkategorije() {
	ajaxpage('admin_kategorije.php','layer');
	showdiv('layer');
}
function showgalerije() {
	ajaxpage('admin_galerije.php','layer');
	showdiv('layer');
}

function logout() {
	conf=confirm('Odjaviti se sa sistema?');
	if (conf==true) { window.parent.location.href ="logout.php"; }
}
function dodajkat(naslov) {
	hidediv('dodajkat');
	loadobjs('kat_action.php?a=add&t='+naslov);
	ajaxpage('admin_kategorije.php','layer');
}
function dodajgal(naslov,info) {
	hidediv('dodajgal');
	loadobjs('gal_action.php?a=add&t='+naslov+'&in='+info);
	ajaxpage('admin_galerije.php','layer');
}
function deletekat(id) {
	conf=confirm('Obrisati kategoriju?');
	if (conf==true) {
	loadobjs('kat_action.php?a=del&t='+id);
	ajaxpage('admin_kategorije.php','layer');
	}
}
function deletenews(id) {
	conf=confirm('Obrisati vijest?');
	if (conf==true) {
		loadobjs('vijesti_action.php?a=del&id='+id);
		ajaxpage('admin_vijesti.php','div-cont');
	}
}
function deletesl(id) {
	conf=confirm('Obrisati sliku?');
	if (conf==true) {
		loadobjs('slika_upload.php?a=del&i='+id);
		ajaxpage('admin_galerija.php','div-cont');
	}
}
function deletegal(id) {
	conf=confirm('Obrisati galeriju?');
	if (conf==true) {
		loadobjs('gal_action.php?a=del&t='+id);
		ajaxpage('admin_galerije.php','layer');
	}
}
function novavijest() {
	ajaxpage('vijesti.php?id=new','div-cont')
	loadobjs('whizzywig.js');
	loadobjs('makewhiz.js');
}
function change(picture) {
document.img.src = picture
}