$(document).ready(function (){
	$('body').removeClass();
	numRand = Math.floor(Math.random()*5) + 0;
	$('body').addClass('bodyClass'+ numRand);
	$(".lightbox").lightbox();
	numRand = Math.floor(Math.random()*5) + 1;
	$('#page_content_cat1').css("background", "url('../imgs/main_"+numRand+ ".jpg') no-repeat left bottom");
});