function show(){
		document.getElementById('plan').style.visibility="visible";
		document.all.plan.style.visibility="visible";
}
function hide(){
		document.getElementById('plan').style.visibility="hidden";
		document.all.plan.style.visibility="hidden";
}

if (document.getElementById){
document.write('<style type="text/css">\n')
document.write('.submenu{display: none;}\n')
document.write('</style>\n')
}


function getElementsByClassName(oElm, strTag, strClass) {
var arrElements = (strTag == "*" && oElm.all) ? oElm.all : oElm.getElementsByTagName(strTag);
var arrReturnElements = new Array();
strClass = strClass.replace(/\-/g, "\\-");
var oRegExp = new RegExp("(^|\\s)" + strClass + "(\\s|$)");
var oElement;
for (var i=0; i<arrElements.length; i++) {
oElement = arrElements[i];
if(oRegExp.test(oElement.className)) {
arrReturnElements.push(oElement);
}
}
return (arrReturnElements);
}

function zaznacz( strClass) {
var set=false;
elmnts = getElementsByClassName(document, "input", strClass);
for(var i=0; i<elmnts.length; i++) {
elmnts[i].checked=true;
}
}
function odznacz( strClass) {
var set=false;
elmnts = getElementsByClassName(document, "input", strClass);
for(var i=0; i<elmnts.length; i++) {
elmnts[i].checked=false;
}
}

function zaznacz2( strClass, wartosc ) {
var set=false;
elmnts = getElementsByClassName(document, "select", strClass);
for(var i=0; i<elmnts.length; i++) {
elmnts[i].value=wartosc;
}
}


function pokaz_ukryj(warstwa,strClass)
{
 if (document.getElementById(warstwa).style.display!='block') {
 	document.getElementById(warstwa).style.display='block';
	
	zaznacz( strClass);
	
	/*document.forms.formularz1.text1.value */
	/*
	var strClass="klasa"+warstwa;
	
	var set=false;
	elmnts = getElementsByClassName(document, "input", strClass);
	for(var i=0; i<elmnts.length; i++) {
	elmnts[i].checked=true;
	}	
	*/
	
	/*
  var zmienna="tak"+warstwa;	
	
	document.forms.signup2.tak1[1].checked = true; 
	
	for(var i=1;i<10;i++) {

		document.signup2.zmienna[i].checked = 1; 
	}
	*/
 }
 else {
 	document.getElementById(warstwa).style.display='none';
	odznacz( strClass);
 }
}