<!--Hide script from old brosers
if (document.images) {

homeOff=new Image
pastOff=new Image
schedOff=new Image
contactOff=new Image
homeOn=new Image
pastOn=new Image
schedOn=new Image
contactOn=new Image

homeOff.src="graphics/nav/home_off.gif"
pastOff.src="graphics/nav/upcomingtalks_off.gif"
schedOff.src="graphics/nav/sched_off.gif"
contactOff.src="graphics/nav/contact_off.gif"
homeOn.src="graphics/nav/home_on.gif"
pastOn.src="graphics/nav/upcomingtalks_on.gif"
schedOn.src="graphics/nav/sched_on.gif"
contactOn.src="graphics/nav/contact_on.gif"

}//end if
else {

homeOff=""
pastOff=""
schedOff=""
contactOff=""
homeOn=""
pastOn=""
schedOn=""
contactOn=""

document.homeImg=""
document.pastImg=""
document.schedImg=""
document.contactImg=""

}//end else
//end hiding script from old browsers -->