Show hide google map

gistfile1.js

$('a.toggle').click(function() {
	event.preventDefault();
	$("div.hide").slideToggle("fast");

	var $t = $(this);
	var href = $t.attr('href');
	
	if(href == '#map') {
		google.maps.event.addListener(map_canvas, 'resize', function() {
			map_canvas.setCenter(map_bounds.getCenter());
		});

		google.maps.event.trigger(map_canvas, 'resize');

	}
});

Can you use the slideToggle() callback function?

var toggle = true;

$("div.hide").slideToggle("fast", function() {

    /* Only triggers on the first toggle */

    if(toggle) {
        google.maps.event.addListener(map_canvas, 'resize', function() {
            map_canvas.setCenter(map_bounds.getCenter());
        });

        google.maps.event.trigger(map_canvas, 'resize');
    }

    /* Resets the toggle */

    if(!toggle) {
        toggle = true;
    }
    else {
        toggle = false;
    }

});