function hidestories() {
	var divs=document.getElementById('zmieniane').getElementsByTagName('div');
	for (j=0; j<divs.length; j++) {
		var rE = new RegExp("(^|\\s)" + 'zmiana' + "(\\s|$)");
		if (rE.test(divs[j].className)) {
		divs[j].style.display="none"; }
	}
}

function zmieniane(first) {
	var zakladki=document.getElementById('zakladki').getElementsByTagName('a');
	for (i=0; i<zakladki.length; i++) {
		zakladki[i].onclick=function() {
			hidestories();
			var thestory=(this.href).split("#",2)[1];
			document.getElementById(thestory).style.display="block";
			return false;
		}
	}
	if (first) {
		var firstone=document.getElementById('zmieniane').firstChild;
		if (firstone.nodeType != 1) {firstone = firstone.nextSibling;}
		firstone.style.display="block";
	}
}
window.onload=function() {
	hidestories();
	zmieniane(1);
}