if (document.images) {

 homeon = new Image();
 homeon.src = "/images/menu_home_on.gif";

 homeoff = new Image();
 homeoff.src = "/images/menu_home_off.gif";

 serviceson = new Image();
 serviceson.src = "/images/menu_services_on.gif";

 servicesoff = new Image();
 servicesoff.src = "/images/menu_services_off.gif";

 abouton = new Image();
 abouton.src = "/images/menu_about_on.gif";

 aboutoff = new Image();
 aboutoff.src = "/images/menu_about_off.gif";

 the_toadon = new Image();
 the_toadon.src = "/images/menu_the_toad_on.gif";

 the_toadoff = new Image();
 the_toadoff.src = "/images/menu_the_toad_off.gif";

 contact_uson = new Image();
 contact_uson.src = "/images/menu_contact_us_on.gif";

 contact_usoff = new Image();
 contact_usoff.src = "/images/menu_contact_us_off.gif";
 
 chemical_analysis_on = new Image();
 chemical_analysis_on.src = "/images/chemical_analysis_on.jpg";

 chemical_analysis_off = new Image();
 chemical_analysis_off.src = "/images/chemical_analysis_off.jpg";
 
 olive_oil_on = new Image();
 olive_oil_on.src = "/images/olive_oil_on.jpg";

 olive_oil_off = new Image();
 olive_oil_off.src = "/images/olive_oil_off.jpg";
 
 microbial_analysis_on = new Image();
 microbial_analysis_on.src = "/images/microbial_analysis_on.jpg";

 microbial_analysis_off = new Image();
 microbial_analysis_off.src = "/images/microbial_analysis_off.jpg";
 
 supplies_on = new Image();
 supplies_on.src = "/images/supplies_on.jpg";

 supplies_off = new Image();
 supplies_off.src = "/images/supplies_off.jpg";
 
}

function View(filename) {
LeftPosition = (screen.width) ? (screen.width-320)/2 : 0;
TopPosition = (screen.height) ? (screen.height-240)/2 : 0;
OpenWin = this.open("/"+filename,"PhotoWindow","toolbar=no,width=320,height=240,left="+LeftPosition+",top="+TopPosition+",directories=no,status=no,scrollbars=no,resize=no,menubar=no")
}