// BEGIN IMAGE SWAP CODE

// image swap, on state
function imgOn(imgName) {
	if(document.images)
		document [imgName].src = eval(imgName + '_on.src');
}

// image swap, off state
function imgOff(imgName) {
	if(document.images)
		document [imgName].src = eval(imgName + '_off.src');
}	

// preload images

nav_image1_on = new Image(); nav_image1_on.src = "images/lineage_on.gif"
nav_image1_off = new Image(); nav_image1_off.src =  "images/lineage.gif"
nav_image2_on = new Image(); nav_image2_on.src =  "images/teachings_on.gif"
nav_image2_off = new Image(); nav_image2_off.src = "images/teachings.gif"
nav_image3_on = new Image(); nav_image3_on.src =  "images/publications_on.gif"
nav_image3_off = new Image(); nav_image3_off.src =  "images/publications.gif"
nav_image4_on = new Image(); nav_image4_on.src =  "images/events_on.gif"
nav_image4_off = new Image(); nav_image4_off.src =  "images/events.gif"
nav_image5_on = new Image(); nav_image5_on.src =  "images/contacts_on.gif"
nav_image5_off = new Image(); nav_image5_off.src =  "images/contacts.gif"