if(document.images) {
    broadcastTabOver = new Image(100, 43);
    broadcastTabOver.src = "image/broadcast_tab_over.png"
    
    contactTabOver = new Image(100, 43);
    contactTabOver.src = "image/contact_tab_over.png"
    
    newspaperTabOver = new Image(100, 43);
    newspaperTabOver.src = "image/newspaper_tab_over.png"
} // if