function validateSearchBox() {
	var searchbox = $('search_bar');
	if (searchbox.value == '' || searchbox.value == 'search products') {
		alert('Please enter search terms.');
		searchbox.focus();
		return false;
	}
	return true;
}

function clearSearchBox() {
	var searchbox = $('search_bar');
	
	if (searchbox.value == 'search products') {
		searchbox.className = 'active';
		searchbox.value = '';
	}
}

function resetSearchBox() {
	var searchbox = $('search_bar');

	if (searchbox.value == '') {
		searchbox.className = 'inactive';
		searchbox.value = 'search products';
	}
}

function clearHighlights() {
	var lis = document.getElementsByTagName('li');
	for (var i = 0; i < lis.length; i++) {
		if (lis[i].className.search("gallery_thumbnail") != '-1') {
			lis[i].style.cssText = "border: solid 2px #fff;";
		}
	}
}

function showGalleryPhoto(image_id,gal_url,lb_url) {
	clearHighlights();
	$(image_id).style.cssText = "border: solid 2px #ffe01a;";
	$('image').src = gal_url;
	$('lightbox_main').href = lb_url;
}