//Define your images using arbitrary variables, to be passed in as arguments later down the page:
var ap4a = '<img src="pom/ap4a.jpg" width="800" height="491" border="0" alt="Apartament 4A">'
var ap4b = '<img src="pom/ap4b.jpg" width="800" height="640" border="0" alt="Apartament 4B">'
var ap6 = '<img src="pom/ap6.jpg" width="449" height="600" border="0" alt="Apartament 6">'
var poddasze = '<img src="pom/poddasze.jpg" width="800" height="600" border="0" alt="Poddasze">'
var pokoj = '<img src="pom/pokoj.jpg" width="800" height="770" border="0" alt="Pokój">'
var mapa = '<img src="mapa_big.jpg" width="1000" height="643" border="0" alt="Mapa">'