if (document.images) {
	hom_off = new Image();	hom_off.src = "images/home_off.gif";
	hom_on = new Image();	hom_on.src = "images/home_on.gif";
	abo_off = new Image();	abo_off.src = "images/about_off.gif";
	abo_on = new Image();	abo_on.src = "images/about_on.gif";
	ser_off = new Image();	ser_off.src = "images/services_off.gif";
	ser_on = new Image();	ser_on.src = "images/services_on.gif";
	ind_off = new Image();	ind_off.src = "images/industries_off.gif";
	ind_on = new Image();	ind_on.src = "images/industries_on.gif";
	tec_off = new Image();	tec_off.src = "images/technotes_off.gif";
	tec_on = new Image();	tec_on.src = "images/technotes_on.gif";
	eve_off = new Image();	eve_off.src = "images/events_off.gif";
	eve_on = new Image();	eve_on.src = "images/events_on.gif";
	car_off = new Image();	car_off.src = "images/career_off.gif";
	car_on = new Image();	car_on.src = "images/career_on.gif";
	con_off = new Image();	con_off.src = "images/contact_off.gif";
	con_on = new Image();	con_on.src = "images/contact_on.gif";
}

function swapem (sname,lname) {
	sname.src = lname.src;
}