<!--
var sectionName = null;

// preload images
function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()');
		eval(imgObj+'.src = "'+imgSrc+'"');
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}

if (document.images) { 
    preload('homenav_purchase','images/home/homenav_purchase.gif');
    preload('homenav_about','images/home/homenav_about.gif');
    preload('homenav_articles','images/home/homenav_articles.gif');
    preload('homenav_posters','images/home/homenav_posters.gif');
    preload('homenav_contact','images/home/homenav_contact.gif');
    preload('homenav_purchase_on','images/home/homenav_purchase_on.gif');
    preload('homenav_about_on','images/home/homenav_about_on.gif');
    preload('homenav_articles_on','images/home/homenav_articles_on.gif');
    preload('homenav_posters_on','images/home/homenav_posters_on.gif');
    preload('homenav_contact_on','images/home/homenav_contact_on.gif');
    
    preload('nav_purchase','../images/nav/nav_purchase.gif');
    preload('nav_about','../images/nav/nav_about.gif');
    preload('nav_articles','../images/nav/nav_articles.gif');
    preload('nav_posters','../images/nav/nav_posters.gif');
    preload('nav_contact','../images/nav/nav_contact.gif');
    preload('nav_purchase_on','../images/nav/nav_purchase_on.gif');
    preload('nav_about_on','../images/nav/nav_about_on.gif');
    preload('nav_articles_on','../images/nav/nav_articles_on.gif');
    preload('nav_posters_on','../images/nav/nav_posters_on.gif');
    preload('nav_contact_on','../images/nav/nav_contact_on.gif');
}

function imgOn(imgName) {
        if (document.images) {
        	document[imgName].src = eval(imgName+'_on.src');
        }
}

function imgOff(imgName) {
        if (document.images) {
            	document[imgName].src = eval(imgName + '.src');
		}
}
//-->