var ajax = new XMLHttpRequest;

function photos()
{
	ajax.open("GET", "http://www.extremedad.com/cms/wp-content/themes/extremedad/photo_categories.html", true);
	ajax.onreadystatechange = function()
	{
		if (ajax.readyState == 1 || ajax.readyState == 2 )
		{
			document.getElementById('content_area_left').innerHTML = '<div class="ajax_gif"><img src="http://www.extremedad.com/cms/wp-content/themes/extremedad/images/ajax.gif" /></div>'
		}
		if (ajax.readyState == 4 && ajax.status == 200)
   		{
			photosText = ajax.responseText;
			document.getElementById('content_area_left').innerHTML = "<h1>Choose a category</h1>" + photosText;
		}
	}
	ajax.send(null);
	return false;
}