function newImage(arg) {
if (document.images) {
rslt = new Image();
rslt.src = arg;
return rslt;
}
}

function changeImagesArray(array) {
if (document.images && (preloadFlag == true)) {
for (var i=0; i<array.length; i+=2) {
document[array[i]].src = array[i+1];
}
}
}

function changeImages() {
changeImagesArray(changeImages.arguments);
}

function toggleImages() {
for (var i=0; i<toggleImages.arguments.length; i+=2) {
if (selected == toggleImages.arguments[i])      changeImagesArray(toggleImages.arguments[i+1]);
}
}


var selected = '';
var preloadFlag = false;

function preloadImages_home() {
if (document.images) {
index_about_over = newImage("/images/index_about-over.gif");
index_become_over = newImage("/images/index_become-over.gif");
index_renew_over = newImage("/images/index_renew-over.gif");
index_register_over = newImage("/images/index_register-over.gif");
index_meetings_over = newImage("/images/index_meetings-over.gif");
index_programs_over = newImage("/images/index_programs-over.gif");
index_publications_over = newImage("/images/index_publications-over.gif");
index_divisions_over = newImage("/images/index_divisions-over.gif");
index_govt_over = newImage("/images/index_govt-over.gif");
index_donate_over = newImage("/images/index_donate-over.gif");
index_FAQ_over = newImage("/images/index_FAQ-over.gif");
index_members_over = newImage("/images/index_members-over.gif");
preloadFlag = true;
}
}

function preloadImages_sub() {
if (document.images) {
sub_about_over = newImage("/images/sub_about-over.gif");
sub_become_over = newImage("/images/sub_become-over.gif");
sub_renew_over = newImage("/images/sub_renew-over.gif");
sub_register_over = newImage("/images/sub_register-over.gif");
sub_meetings_over = newImage("/images/sub_meetings-over.gif");
sub_programs_over = newImage("/images/sub_programs-over.gif");
sub_pubs_over = newImage("/images/sub_pubs-over.gif");
sub_divisions_over = newImage("/images/sub_divisions-over.gif");
sub_government_over = newImage("/images/sub_government-over.gif");
sub_donate_over = newImage("/images/sub_donate-over.gif");
sub_faq_over = newImage("/images/sub_faq-over.gif");
sub_members_over = newImage("/images/sub_members-over.gif");
preloadFlag = true;
}
}