function zmien_podkategorie(id_kat,id_katalogu) {
	select = document.getElementById("select_podkat");
	
	if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
		xmlhttp=new XMLHttpRequest();
	}
	else {// code for IE6, IE5
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState==4 && xmlhttp.status==200) {
			select.innerHTML=xmlhttp.responseText;
		}
	}
	xmlhttp.open("GET","inc/add_podkategoria.php?id_kat="+id_kat+"&id_katalogu="+id_katalogu,true);
	xmlhttp.send();


}

function zliczaj() {
	
	var obj = document.getElementById('opis');
	var wpis = document.getElementById('wpisane');
	if(obj.value.length>1500 || obj.value.length<300) {
		wpis.innerHTML = "<font color='red'>"+obj.value.length+"</font>";
	} else {
		wpis.innerHTML = "<font color='green'>"+obj.value.length+"</font>";
	}
	
	timer=setTimeout('zliczaj()', 100); 
}