var ajax_load_in_progress = false;

$(document).ready(function()
{
	var check_timeout = null;
	
	$('#filters input[type=checkbox]').bind('change',function()
	{
		if(ajax_load_in_progress)
		{
			this.checked = false;
			return false;	
		}
		
		if(check_timeout)
			clearTimeout(check_timeout);
		
		check_timeout = setTimeout(load_photos_in_selected_categories,1200);
	});
	
	$('h1').sifr( { strSWF: './fonts/century.swf', strColor: '#000000', strWmode: 'transparent' } );
});

function load_photos_in_selected_categories()
{
		ajax_load_in_progress = true;
		
		//Get all the checkboxes that are currently checked
		serialized_categories = $('#filters input[type=checkbox][@checked]').serialize();
		
		$('dl.photo-list').remove();
		$('#filters').after('<div id="loading_animation"><img src="images/layout/ajax_loader_large.gif" alt="Loading..."></div>');
		
		$.post('/services/browse-categories',serialized_categories,function(response){
			$('#loading_animation').remove();
			$('#filters').after($('response',response).text());
			ajax_load_in_progress = false;
		});	
}