function combOver(imgname,onsource) {
imgname.src = onsource;
}

function combOut(imgname,offsource) {
imgname.src = offsource;
}

if (document.request) {

var home = document.home;
home.src = '1587XPress/hom1.gif';
home.parentNode.onmouseover = new Function("combOver(home,'1587XPress/hom2.gif');");
home.parentNode.onmouseout = new Function("combOut(home,'1587XPress/hom1.gif');");

var printing = document.printing;
printing.src = '1587XPress/prin1.gif';
printing.parentNode.onmouseover = new Function("combOver(printing,'1587XPress/prin2.gif');");
printing.parentNode.onmouseout = new Function("combOut(printing,'1587XPress/prin1.gif');");

var services = document.services;
services.src = '1587XPress/serv1.gif';
services.parentNode.onmouseover = new Function("combOver(services,'1587XPress/serv2.gif');");
services.parentNode.onmouseout = new Function("combOut(services,'1587XPress/serv1.gif');");

var ideas = document.ideas;
ideas.src = '1587XPress/idea1.gif';
ideas.parentNode.onmouseover = new Function("combOver(ideas,'1587XPress/idea2.gif');");
ideas.parentNode.onmouseout = new Function("combOut(ideas,'1587XPress/idea1.gif');");

var contact = document.contact;
contact.src = '1587XPress/cont1.gif';
contact.parentNode.onmouseover = new Function("combOver(contact,'1587XPress/cont2.gif');");
contact.parentNode.onmouseout = new Function("combOut(contact,'1587XPress/cont1.gif');");

}