if (document) {
	img1on = new Image();      
	img1on.src = "images/nav_home_sbt.gif";
	img2on = new Image();      
	img2on.src = "images/nav_about_sbt.gif";
	img3on = new Image();      
	img3on.src = "images/nav_ensembles_sbt.gif";
	img4on = new Image();      
	img4on.src = "images/nav_calendar_sbt.gif";
	img5on = new Image();      
	img5on.src = "images/nav_multimedia_sbt.gif";
	img6on = new Image();      
	img6on.src = "images/nav_boosters_sbt.gif";
	img7on = new Image();      
	img7on.src = "images/nav_contact_sbt.gif";
	img8on = new Image();      
	img8on.src = "images/subnav_store_sbt.gif";
	img9on = new Image();      
	img9on.src = "images/subnav_donate_sbt.gif";
	img10on = new Image();      
	img10on.src = "images/subnav_newmembers_sbt.gif";
	img11on = new Image();      
	img11on.src = "images/subnav_alumni_sbt.gif";
	img12on = new Image();      
	img12on.src = "images/subnav_sponsors_sbt.gif";
	img13on = new Image();      
	img13on.src = "images/subnav_links_sbt.gif";
	img14on = new Image();      
	img14on.src = "images/subnav_contact_sbt.gif";
	img15on = new Image();      
	img15on.src = "images/subnav_member_sbt.gif";
	img16on = new Image();      
	img16on.src = "images/subnav_tournament_sbt.gif";

	img1off = new Image(); 
	img1off.src = "images/nav_home_bt.gif";
	img2off = new Image(); 
	img2off.src = "images/nav_about_bt.gif";
	img3off = new Image(); 
	img3off.src = "images/nav_ensembles_bt.gif";
	img4off = new Image(); 
	img4off.src = "images/nav_calendar_bt.gif";
	img5off = new Image(); 
	img5off.src = "images/nav_multimedia_bt.gif";
	img6off = new Image(); 
	img6off.src = "images/nav_boosters_bt.gif";
	img7off = new Image(); 
	img7off.src = "images/nav_contact_bt.gif";
	img8off = new Image(); 
	img8off.src = "images/subnav_store_bt.gif";
	img9off = new Image(); 
	img9off.src = "images/subnav_donate_bt.gif";
	img10off = new Image(); 
	img10off.src = "images/subnav_newmembers_bt.gif";
	img11off = new Image(); 
	img11off.src = "images/subnav_alumni_bt.gif";
	img12off = new Image(); 
	img12off.src = "images/subnav_sponsors_bt.gif";
	img13off = new Image(); 
	img13off.src = "images/subnav_links_bt.gif";
	img14off = new Image(); 
	img14off.src = "images/subnav_contact_bt.gif";
	img15off = new Image(); 
	img15off.src = "images/subnav_member_bt.gif";
	img16off = new Image(); 
	img16off.src = "images/subnav_tournament_bt.gif";
}

// Function to 'activate' images
function imgOn(imgName) {
	if (document) {
		document[imgName].src = eval(imgName + "on.src");
	}
}

// Function to 'deactivate' images
function imgOff(imgName) {
	if (document) {
		document[imgName].src = eval(imgName + "off.src");
	}
}