function show_window(url,width,height,sb,top,left) {
	if (screen.height<height) {
		height = 450;
        sb = 1;
    }
            
    window.open(url,'WCM','align=center,location=0,toolbar=0,status=0,location=0,directories=0,resizable=0,scrollbars='+sb+',width='+width+',height='+height+',top='+top+',left='+left+',menubar=no')
}

function show_window_bar(url,width,height,sb,top,left) {
	if (screen.height<height) {
		height = 450;
        sb = 1;
    }
            
    window.open(url,'WCM','align=center,location=1,toolbar=1,status=0,directories=0,resizable=1,scrollbars='+sb+',width='+width+',height='+height+',top='+top+',left='+left+',menubar=no')
}

function kopiujDane(frm) {
	frm.fak_imie.value = frm.imie.value;
	frm.fak_nazwisko.value = frm.nazwisko.value;
	frm.fak_ulica.value = frm.ulica.value;
	frm.fak_kod.value = frm.kod.value;
	frm.fak_miejscowosc.value = frm.miejscowosc.value;
}

function wylaczFakture(frm) {
	if ((frm.fak_na_firme.checked == true) && (frm.chce_fakture.checked == false)) {
		frm.fak_na_firme.checked = false;
	}
}

function wlaczFakture(frm) {
	if ((frm.fak_na_firme.checked == true) && (frm.chce_fakture.checked == false)) {
		frm.chce_fakture.checked = true;
	}
}

//----------------------

function hide(what) {
	 what.style.left = '-224';
}

function show(what) {
	what.style.left = '0';
}


function charsLeft() {
	var zawartosc = document.dodawanie.opis.value;
	var pom = new String(zawartosc);
	var dlug = pom.length;
	document.dodawanie.zostalo.value = 1000 - dlug;
}

function charsLeft2() {
	var zawartosc = document.dodawanie.slowa_kluczowe.value;
	var pom = new String(zawartosc);
	var dlug = pom.length;
	document.dodawanie.zostalo2.value = 50 - dlug;
}

function print() {
	if (!window.print) {
		alert("Opcja drukowania wymaga przynajmniej Netscape 4.x lub Internet Explorer 5.");
		return
	}
	window.print();
}

function skacz(skok) {
	if (parent.moveBy) {
		for (i = skok; i > 0; i--) {
			for (j = skok; j > 0; j--) {
				parent.moveBy(0,i);
				parent.moveBy(i,0);
				parent.moveBy(0,-i);
				parent.moveBy(-i,0);
			}
		}	
	}
}

function hopla(skok, czas) { 
	skacz(skok);
	setTimeout('hopla()', czas);
}

function displayChat(url, width, height) {
	var Win = window.open(url,"displayChat",'width=' + width + ',height=' + height + ',resizable=0,scrollbars=no,menubar=no' );
}

function nowe_okno() {
     	okno = window.open("/doki/webmaster.htm",'Webmaster','toolbar=no,menubar=no,location=no,personalbar=no,scrollbars=no,directories=no,status=no,resizable=no,width=400,height=500,left=200,top=200');
	okno.document.open();
	okno.document.write("webmaster.htm");
	// okno.document.location("/doki/webmaster.htm");
	// okno.document.close();
	okno.focus();
      }

function check_email (email) {
	invalid = " /:,;";
	if (email == "") { return false}
	for (i = 0; i < invalid.length; i++) {
		bad = invalid.charAt(i);
		if (email.indexOf (bad, 0) != -1) { return false }
	}
	at = email.indexOf("@", 0);
	if ( (at == -1) || (at == 0) ) { return false }
	if (email.indexOf("@", at+1) != -1) { return false }
	period = email.indexOf(".", at);
	if ( (period == -1) || (period == at+1)) { return false }
	if (period+3 > email.length == -1) { return false }
	return true;
}

function wyslij(form) {
	if (form.imie.value == '') {
		alert('Podaj swoje imi© i nazwisko.');
		form.imie.focus();
		return false;
	} else if (!(check_email(form.email.value))) {
		alert('Wpisz prawidˆowy e-mail.');
		form.email.focus();
		form.email.select();
		return false;
	} else if (form.temat.value == '') {
		alert('Podaj temat listu.');
		form.temat.focus();
		return false;
	} else if (form.tresc.value == '') {
		alert('Wpisz tre˜† listu.');
		form.tresc.focus();
		return false;
	} else {
		return true;
	}
}