// dal je browser Internet Explorer
var IE = (navigator.appName.toLowerCase() == "microsoft internet explorer") ? true : false;

function getEL(element) {
	return (document.all ? document.all(element) : (document.getElementById ? document.getElementById(element) : null));
}
function is_num(t) {
	var v_ = "0123456789";
	var broj = true;
	var c_;
	for (i = 0; i < t.length && broj == true; i++) {
		c_ = t.charAt(i);
		if (v_.indexOf(c_) == -1) {
			broj = false;
		}
	}
	return broj;
}
function is_mail(t) {
	re = new RegExp(/^[a-zA-z0-9_\-\.]+@[a-zA-z0-9_\-\.]+\.[a-z]+$/);
	if (t.match(re)) {
		return true;
	}
	return false;
}
// dodavanje elementa
function addElement(kamo_ide, elem, id) {
	_element = getEL(id);
	if (!_element) {
		var old = typeof(kamo_ide) != 'object' ? getEL(kamo_ide) : kamo_ide;
		var _element = document.createElement(elem);
		_element.setAttribute('id', id);
		old.appendChild(_element);
	}
	return _element;
}
// micanje elemenata
function removeElement(od_kud, id) {
	id = typeof(id) != 'object' ? getEL(id) : id;
	d = typeof(od_kud) != 'object' ? getEL(od_kud) : od_kud;
	d.removeChild(id);
}
function trim(e) {
	return e.replace(/^\s+|\s+$/g, "");
}
function in_array(the_needle, the_haystack){
	var the_hay = the_haystack.toString();
	if(the_hay == ''){
		return false;
	}
	var the_pattern = new RegExp(the_needle, 'g');
	var matched = the_pattern.test(the_haystack);
	return matched;
}
function empty(t) {
	t = trim(t);
	if (t == "" || t == " " || t == null) {
		return true;
	}
	else {
		return false;	
	}
}
// apsolutna pozicija eplementa
function getAbsolutePosition(element) {
	if (typeof(element) != 'object') {element = getEL(element);}
	if (!element) {r = {x:0, y:0};}
	var r = { x: element.offsetLeft, y: element.offsetTop };
	if (element.offsetParent) {
		var tmp = getAbsolutePosition(element.offsetParent);
		r.x += tmp.x;
		r.y += tmp.y;
	}
	return r;
}
function strip_tags(str_) {
	return str_.replace(/(<([^>]+)>)/ig, "");
}
/*
	ulovi element po klasi
*/
function getElementsByClass(searchClass, node, tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp('(^|\\\\s)'+searchClass+'(\\\\s|$)');
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}
/*
	add event :: http://www.dustindiaz.com/rock-solid-addevent/
*/
function addEvent(obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}

var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
/*
	ulovi stil za neki element
	http://www.robertnyman.com/2006/04/24/get-the-rendered-style-of-an-element/
*/
function getStyle(oElm, strCssRule){
	if (typeof(oElm) != 'object') {oElm = getEL(oElm);}
	var strValue = "";
	if(document.defaultView && document.defaultView.getComputedStyle){
		strValue = document.defaultView.getComputedStyle(oElm, "").getPropertyValue(strCssRule);
	}
	else if(oElm.currentStyle){
		strCssRule = strCssRule.replace(/\-(\w)/g, function (strMatch, p1){
			return p1.toUpperCase();
		});
		strValue = oElm.currentStyle[strCssRule];
	}
	return strValue;
}
/*
	funkcije za cookie
	http://www.quirksmode.org/js/cookies.html
*/
// napravi cookie
function SetCookie(name, value, days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else {
		var expires = "";
	}
	document.cookie = name+"="+value+expires+"; path=/";
}
// citaj cookie
function ReadCookie(name) {
	var nameEQ = name+"=";
	var ca = document.cookie.split(';');
	for (i = 0; i < ca.length; i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1, c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
	}
	return null;
}
// obrisi cookie
function EraseCookie(name) {
	SetCookie(name, "", -1);
}
/*
	micanje tagova
*/
function strip_tags(_t){
	var re = new RegExp(/<\S[^><]*>/g);
	_t = _t.replace(re, "");
	return _t;
}
/*
	postavi red u class selected ili makni klasu
*/
function set_row(_e, force_select, force_unselect) {
	_r = typeof(_e) == 'object' ? getEL('red-'+_e.value) : getEL('red-'+_e);
	force_select = force_select || null;
	force_unselect = force_unselect || null;
	if (!_r) {alert('Greška kod traženja reda!');return false;}
	if (( _e.checked && !force_unselect ) || force_select) {
		_r.className += ' selected_row';
	}
	else {
		_r.className = _r.className.replace(/ selected_row/g, '');
		_r.className = _r.className.replace(/selected_row/g, '');
	}
	force_select = force_unselect = _r = null;
	return true;
}
/*
	tekst u uri
*/
function text_to_uri(t) {
	t = String(t);
	t = t.toLowerCase();
	t = t.replace(/[!?#*_.;,:@\\\|\"\'\$\%&\(\)+=\{\}\[\]<>]/g, '');
	t = t.replace(/[ \/]/g, '-');

	// napravi replace dva dasha sve dok postoje dva u komadu
	while (t.match(/--/)) {
		t = t.replace('--', '-');
	}
	// ako je na početku dash makni ga
	if (t.substr(0, 1) == '-') {t = t.substr(1, t.length);}
	u = null;
	return t;
}