// Slide Down
var slidedowneffect = $('slider').effect('top');
$('slidedown').setStyle('display', 'block')
	$('slidedown').addEvent('click', function(){
	slidedowneffect.custom(-300,0);
	});
	// Slide Up
var slideupeffect = $('slider').effect('top');
$('slideup').addEvent('click', function(){
	slideupeffect.custom(0,-300);
});