window.addEvent('domready', function(){
	$('SK').addEvent('click', function(e) {
		e = new Event(e).stop();

		var url = "sk.php";

		/**
		 * The simple way for an Ajax request, use onRequest/onComplete/onFailure
		 * to do add your own Ajax depended code.
		 */
		new Ajax(url, {
			method: 'get',
			update: $('log')
		}).request();
	});	
	$('PG').addEvent('click', function(e) {
		e = new Event(e).stop();

		var url = "pg.php";

		/**
		 * The simple way for an Ajax request, use onRequest/onComplete/onFailure
		 * to do add your own Ajax depended code.
		 */
		new Ajax(url, {
			method: 'get',
			update: $('log')
		}).request();
	});
});