function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function liczba2kwota(num) {
	return liczba2kwota_waluta(num,'zł');
} 
function liczba2kwota_waluta(num,currency) {
	num = num.toString().replace(/\$|\,/g,'');
	if(isNaN(num)) num = "0";
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num*100+0.50000000001);
	cents = num%100;
	num = Math.floor(num/100).toString();
	if(cents<10) cents = "0" + cents;
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
	  num = num.substring(0,num.length-(4*i+3))+' '+num.substring(num.length-(4*i+3));
	return (((sign)?'':'-') + num + ',' + cents + ' ' + currency);
} 

function otworzOkno(url,nazwa,szer,wys) {
	  window.open(url, nazwa,'left=20,top=20,width='+szer+',height='+wys+',status=0,location=0,menubar=0,toolbar=0,scrollbars=1,resizable=1');
}