var SITE_PREFIX = "/";
var IMAGES_NAV_DIR = "images/nav/";

// mouseover preloads
var navImgOff = new Array();
var navImgOver = new Array();
var navImgOn = new Array();
if (document.images) {
    var navList = new Array(); // 'about', 'products', 'services');
    for (var i=0; i<navList.length; i++) {
        navImgOff[navList[i]] = new Image();
        navImgOff[navList[i]].src = SITE_PREFIX+IMAGES_NAV_DIR+navList[i]+'-off.gif';
        navImgOver[navList[i]] = new Image();
        navImgOver[navList[i]].src = SITE_PREFIX+IMAGES_NAV_DIR+navList[i]+'-on.gif';
        navImgOn[navList[i]] = new Image();
        navImgOn[navList[i]].src = SITE_PREFIX+IMAGES_NAV_DIR+navList[i]+'-on.gif';
    }
}

// mouseover image functions
function navOff(navName) {
    if (navName && navName.length && document.images && document['nav_'+navName]) {
        if (navName == navActive) {
            // don't turn off current page's nav link
            document['nav_'+navName].src = navImgOn[navName].src;
        } else {
            document['nav_'+navName].src = navImgOff[navName].src;
        }
    }
}

function navOver(navName) {
    if (navName && navName.length && document.images && document['nav_'+navName]) {
        document['nav_'+navName].src = navImgOver[navName].src;
    }
}

function navOn(navName) {
    if (navName && navName.length && document.images && document['nav_'+navName]) {
        document['nav_'+navName].src = navImgOn[navName].src;
    }
}

function swapContainers(a,b,c) {
	a = "#"+a;
	b = "#"+b;
	if (!(c === undefined)) {
		c = "#"+c;
	    $(c).css('display','none');
	}
	$(b).css('display','none');
	$(a).css('display','block');
}

function swapImagery(imgName) {
	var str = new String('<a href="assets/images/homepage/large/FILENAME1.jpg" class="thickbox"><img src="assets/images/homepage/med/FILENAME2.jpg" width="577" height="325" alt="" /><br/><img src="images/enlarge-image.gif" width="574" height="31" alt="Enlarge Image" /></a>');
	str = str.replace('FILENAME1',imgName);
	str = str.replace('FILENAME2',imgName);
	$('#currentVideo').html(str);
	tb_init('a.thickbox');
}