function set_active(objPrefix, objID, activeID){
	var obj = document.getElementById(objPrefix+String(objID));
	var activeObj = document.getElementById(objPrefix+String(activeID));
	activeObj.className = "collapsed";
	obj.className = "expanded";
	return objID;
}
function set_range(objPrefix, activeFirst, activeLast){
	var obj;
	for(var i=1; i<=eval(objPrefix+"total"); i++){
		obj = document.getElementById(objPrefix+String(i));
		obj.className = ((i >= activeFirst && i<= activeLast) ? "expanded" : "collapsed") + " uputstvo uputstvo"+String(i-activeFirst+1);
	}
	return false;
}
function pomeri(prefix, smer, ukupno){
	var activeFirst = eval(prefix+"first");
	var activeLast = activeFirst - 1 + ukupno;
	if(activeFirst+smer > 0 && activeLast+smer <= eval(prefix+"total")){
		set_range(prefix, activeFirst+smer, activeLast+smer);
		return activeFirst+smer;
	}
	return activeFirst;
}
function prikazi(sender, obj){
	var s = document.getElementById(sender);
	var objekat = document.getElementById(obj);
	if(s.innerHTML.substring(0, 3) == "[+]"){
		s.innerHTML = "[-]" + s.innerHTML.substring(3, s.innerHTML.length);
		objekat.className = "expanded";
	}else{
		s.innerHTML = "[+]" + s.innerHTML.substring(3, s.innerHTML.length);
		objekat.className = "collapsed";
	}
}