var rolloverPics = new Array("langpl","langen","langru","langde","centrokabel","ferromontane","enercom","ccc","enac","until","eney","telbeskid","wisla","kraktel","tfcm");

init = function() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("mainnav");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" over";
				}
				node.onmouseout=function() {
					this.className=this.className.replace(" over", "");
				}
			}
		}
	}

	for (i=0; i>rolloverPics.length; i++) {
	 if (document.getElementById(rolloverPics[i])) {
		document.getElementById(rolloverPics[i]).onmouseover=function(){ imgon(this) }
		document.getElementById(rolloverPics[i]).onmouseout=function(){ imgoff(this) }
	 }
	}
}
imgon = function(imgsrc) {

	imgstring = new String(imgsrc.src);
	imgextension = imgstring.substring(imgstring.length,imgstring.length-4);
	imgstring = imgstring.substring(0,imgstring.length-4) + "_on" + imgextension;
	imgsrc.src = imgstring;
}


imgoff = function(imgsrc) {

	imgstring = new String(imgsrc.src);
	imgextension = imgstring.substring(imgstring.length,imgstring.length-4);
	imgstring = imgstring.substring(0,imgstring.length-7) + imgextension;
	imgsrc.src = imgstring;
}


function imgpopup(imgname) {
	url = "imgpopup.htm?imgname=" + imgname; 
	winpopup =  eval("window.open(url,'winpopup', 'width=10,height=10,left=0,top=0')");
}


function hideallforms() {
	for(a=0;a < document.forms.length;++a) {
		for(b=0;b < document.forms[a].elements.length;++b) {
			document.forms[a].elements[b].style.visibility = "hidden";
		}
	}

}
function showallforms() {
	for(a=0;a < document.forms.length;++a) {
		for(b=0;b < document.forms[a].elements.length;++b) {
			document.forms[a].elements[b].style.visibility = "visible";
		}
	}

}
function strefadlauczniow() {
	strefaokno=window.open('uczniowie/','oknostrefy', 'width=545,height=550,left=100,top=20,menubar=no,status=yes,scrollbars=yes')
}
function mediawin(pic,width) {
	mediaokno=eval("window.open('gfx/zdjecia/" + pic + "','oknomedia', 'width=" + width + ",height=550,left=0,top=0,menubar=no,status=yes,scrollbars=yes')");
}

function mapa() {
	mapaokno=window.open('mapa.php','oknomapy', 'width=500,height=451,left=20,top=20,menubar=no,status=no,scrollbars=no')
}

function mapa1() {
	mapaokno=window.open('mapa1.php','oknomapy', 'width=500,height=451,left=20,top=20,menubar=no,status=no,scrollbars=no')
}

function mapa2() {
	mapaokno=window.open('mapa2.php','oknomapy', 'width=500,height=451,left=20,top=20,menubar=no,status=no,scrollbars=no')
}

function listapodrecznikow() {
	podrecznikiokno=window.open('lista_podrecznikow.php','oknopodreczniki', 'width=523,height=550,left=10,top=20,menubar=yes,status=yes,scrollbars=yes')
}

function skalazaawansowania() {
        podrecznikiokno=window.open('stopnie_zaawansowania.php?okienko=1','oknostopnie', 'width=740,height=550,left=10,top=20,menubar=yes,status=yes,scrollbars=yes')
}

function otworz_oknodrukowania(html) {
	oknodrukowania = window.open(html,'oknodrukowania', 'width=750,height=500,left=20,top=20,menubar=yes,status=yes,scrollbars=yes')
	oknodrukowania.focus();
	return true;
}