function cent(amount) {
// returns the amount in the .99 format 
    amount -= 0;
    amount = (Math.round(amount*100))/100;
    return (amount == Math.floor(amount)) ? amount + '.00' : (  (amount*10 == Math.floor(amount*10)) ? amount + '0' : amount);
}

function roll_over(img_name, img_num)
{
	document[img_name].src = img_num;
}

function flypage_image_browser(img_src, img_link)
{
	document['full_image'].src = img_src;
	document.getElementById('full_image_link').href = img_link;
}

function toggle(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != 'none' ) {
		el.style.display = 'none';
	}	else {
		el.style.display = '';
	}
}