function pokaz_obozy() {
	window.open ('oferta_arabba.html','','width=420,height=450,top=10,left=10,scrollbars=YES');
	window.open ('oferta_swieradow.html','','width=420,height=450,top=10,left=360,scrollbars=YES');	
}
function ogloszenie() {
	window.open ('oferty/popup.html','OGLOSZENIE','width=320,height=300,top=10,left=10,scrollbars=NO');
}