var home1 = new Image();
var home2 = new Image();
var serv1 = new Image();
var serv2 = new Image();
var pers1 = new Image();
var pers2 = new Image();
var end1 = new Image();
var end2 = new Image();
var bulb1 = new Image();
var bulb2 = new Image();


home1.src="images/home.gif";
home2.src="images/home2.gif";
serv1.src="images/services.gif";
serv2.src="images/services2.gif";
pers1.src="images/personnel.gif";
pers2.src="images/personnel2.gif";
end1.src="images/butendup.gif";
end2.src="images/butenddn.gif";
bulb1.src="images/bulb.gif";
bulb2.src="images/bulb2.gif";

function switch_it(img_name,img_src) {
document[img_name].src=img_src;
}

function switch_it2(img_name,img_src,img2_name,img2_src) {
document[img_name].src=img_src;
document[img2_name].src=img2_src;
}