jQuery.fn.extend({
doGet: function(url, params) {
            document.location = url + '?' + $.param(params);
        },
doPost: function(url, params) {
		alert("url: " + url);
		var $formPoster = $("<form id='specialform' method='POST'>").attr("action", url);
		$.each(params, function(name, value) {
			// alert(name + ", " + value);
			$("<input type='hidden'>")
				.attr("name", name)
				.attr("value", value)
				.appendTo($formPoster);
		});
		$formPoster.appendTo("body");
		$("#specialform").submit();
	}
});