function hideAll() {
	//ids = ['komputery', 'kopiarki', 'kasyfiskalne', 'faksy', 'inneurzadzenia', 'firma', 'niezbednik'];
	document.getElementById('komputery').style.display = 'none';
	document.getElementById('kopiarki').style.display = 'none';
	document.getElementById('kasyfiskalne').style.display = 'none';
	//document.getElementById('faksy').style.display = 'none';
	document.getElementById('inneurzadzenia').style.display = 'none';
	document.getElementById('firma').style.display = 'none';
	document.getElementById('niezbednik').style.display = 'none';
}

function showId(element) {
	hideAll();
	document.getElementById(element).style.display = 'block';
}

function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";path=/;expires="+exdate.toGMTString());
}