if (document.images) {

homeOff     = new Image();
homeOn      = new Image();
faqOff      = new Image();
faqOn       = new Image();
forensicOff = new Image();
forensicOn  = new Image();
pubsOff     = new Image();
pubsOn      = new Image();
newsOff     = new Image();
newsOn      = new Image();
picturesOff = new Image();
picturesOn  = new Image();
linksOff    = new Image();
linksOn     = new Image();
aboutusOff  = new Image();
aboutusOn   = new Image();
feesOff     = new Image();
feesOn      = new Image();
contactOff  = new Image();
contactOn   = new Image();


homeOff.src     = "images/b_home.gif";
homeOn.src      = "images/b_home_on.gif";
faqOff.src      = "images/b_faq.gif";
faqOn.src       = "images/b_faq_on.gif";
forensicOff.src = "images/b_forensic_analysis.gif";
forensicOn.src  = "images/b_forensic_analysis_on.gif";
pubsOff.src     = "images/b_publications.gif";
pubsOn.src      = "images/b_publications_on.gif";
newsOff.src     = "images/b_news.gif";
newsOn.src      = "images/b_news_on.gif";
picturesOff.src = "images/b_pictures.gif";
picturesOn.src  = "images/b_pictures_on.gif";
linksOff.src    = "images/b_links.gif";
linksOn.src     = "images/b_links_on.gif";
aboutusOff.src  = "images/b_about_us.gif";
aboutusOn.src   = "images/b_about_us_on.gif";
feesOff.src     = "images/b_fees.gif";
feesOn.src      = "images/b_fees_on.gif";
contactOff.src  = "images/b_contact_us.gif";
contactOn.src   = "images/b_contact_us_on.gif";
}