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

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

function popupWindow(pageURL,windowName,w,h,features){
  var winl = ((screen.width - w) / 2) - 12;
  var wint = (screen.height - h) / 2;
  winprops = 'width='+w+',height='+h+',top='+wint+',left='+winl+','+features
  var popupWindow = window.open( pageURL ,windowName,winprops);
  popupWindow.focus();
}

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

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

// Initialize mouseovers
var home = newImage('/images/menu/home-on.gif');
var about_over = newImage('/images/menu/about-on.gif');
var history_over = newImage('/images/menu/history-on.gif');
var surgery_over = newImage('/images/menu/surgery-on.gif');
var post_surgery_over = newImage('/images/menu/post_surgery-on.gif');
var photos_over = newImage('/images/menu/photos-on.gif');
var repairs_over = newImage('/images/menu/repairs-on.gif');
var financing_over = newImage('/images/menu/financing-on.gif');
var profiles_over = newImage('/images/menu/profiles-on.gif');
var news_over = newImage('/images/menu/news-on.gif');
var member_over = newImage('/images/menu/member-on.gif');
var forums_over = newImage('/images/menu/forums-on.gif');
var surveys_over = newImage('/images/menu/surveys-on.gif');
var links_over = newImage('/images/menu/links-on.gif');
var contact_over = newImage('/images/menu/contact-on.gif');