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]+$/);
	if (t.match(re)) {
		return true;
	}
	return false;
}
// dodavanje elementa
function addElement(kamo_ide, elem, naziv) {
	var old = getEL(kamo_ide);
	var newelement = document.createElement(elem);
	newelement.setAttribute('id', naziv);
	old.appendChild(newelement);
}
// micanje elemenata
function removeElement(od_kud, id) {
	var d = getEL(od_kud);
	var old_id = getEL(id);
	d.removeChild(old_id);
}
function trim(e) {
	return e.replace(/^\s+|\s+$/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;
			};
		}
	};
}();