$(function(){$('body').pngFix();}); 
var preloads = ['/images/site/nav_homeover.png', '/images/site/nav_signupover.png', '/images/site/nav_viewtourover.png', '/images/site/nav_blogover.png'];
var imgs = [];
for(var i=0; i<preloads.length; i++){
	imgs[i] = new Image();
	imgs[i].src = preloads[i];
}