JSFX.Rollover("aboutus",    "images/button_aboutus_hover.gif");
JSFX.Rollover("desks",    "images/button_desks_hover.gif");
JSFX.Rollover("tables",    "images/button_tables_hover.gif");
JSFX.Rollover("chairs",    "images/button_chairs_hover.gif");
JSFX.Rollover("panels",    "images/button_panels_hover.gif");
JSFX.Rollover("cabinets",    "images/button_cabinets_hover.gif");
JSFX.Rollover("contactus",    "images/button_contactus_hover.gif");