doctors=new Image();
doctors.src="../images/button-doctors-over.jpg";
common=new Image();
common.src="../images/button-common-over.jpg";
cosmetic=new Image();
cosmetic.src="../images/button-cosmetic-over.jpg";
skincare=new Image();
skincare.src="../images/button-skin-care-over.jpg";

doctorsi=new Image();
doctorsi.src="../images/button-doctors-icon-over.gif";
commoni=new Image();
commoni.src="../images/button-common-icon-over.gif";
cosmetici=new Image();
cosmetici.src="../images/button-cosmetic-icon-over.gif";
skincarei=new Image();
skincarei.src="../images/button-skin-care-icon-over.gif";