$(document).ready(function(){
   // Your code here
	$('#sub_content').prepend('<div id="js_sel"><h2>Choose a background image</h2><ul></ul></div>')
   
	var arr = [ "8538", "8607", "8501", "8612", "8538ii" ];
	jQuery.each(arr, function(i) {
		var bg_url = $('body').css('background-image');
		if (this != "8612") $('#js_sel ul').append('<li><a href="">'+this+'</a></li>');
		else $('#js_sel ul').append('<li class="active"><a href="">'+this+'</a></li>');
    });
	
	$('#js_sel a').click(function() {
		var bg_id = $(this).text();
		$('body').css('background-image','url("images/'+bg_id+'.jpg")');
		$('#js_sel li').removeClass('active');
		$(this).parent('li').addClass('active');		
		return false;
	});
 });