function toggleDisp(obj){
	return toggleDispWTdom(document.getElementById(obj));
}

function toggleDispWTdom(obj){
	var disp = 'block';
	if(obj.style.display == 'block') disp = 'none';
	
	obj.style.display = disp;
	return false;
}


function hide(obj){
	document.getElementById(obj).style.display = 'none';
	return false;
}

function show(obj){
	document.getElementById(obj).style.display = 'block';
	return false;
}

function zmienTxt(obj){
	if(obj.innerHTML == 'wyszukiwarka zaawansowana') obj.innerHTML = 'wyszukiwarka prosta';
	else obj.innerHTML = 'wyszukiwarka zaawansowana';
}

function forTagAndClass(tag, class, callback)
{
	tags = document.getElementsByTagName(tag);
	
	for(i=0;i<tags.length;i++)
		if(tags[i].className.split(' ').indexOf(class)!=-1)
			callback(tags[i]);
}