window.addEvent('domready', function() {
	var tb1 = new Table('tb1');
	var tb2 = new Table('tb2');
	var tb3 = new Table('tb3');
	var tb4 = new Table('tb4');
 
	$('ok1').addEvent('click', function() {
		tb1.zebraCols('#C17878', '#7389AE', true);
		$('sp1').setStyle('visibility', 'visible');
	});
 
	$('ok2').addEvent('click', function() {
		tb2.overClickCols('#C17878', '#7389AE');
		$('sp2').setStyle('visibility', 'visible');
	});
 
	$('ok3').addEvent('click', function() {
		tb3.overCols('#7389AE');
		$('sp3').setStyle('visibility', 'visible');
	});
 
	$('ok4').addEvent('click', function() {
		tb4.clickCols('#C17878');
		$('sp4').setStyle('visibility', 'visible');
	});
 
});