var clsMain = new Main();

function Main()
{
	var clsMethod = new Method();

	if (typeof Sub == 'function') {
		var clsSub = new Sub();
	}
	
	$('.blank').click(clsMethod.blank);
	$('#back').click(clsMethod.back);
}

function Method()
{
	this.back = function()
	{
		history.back();
		return false;
	};

	this.blank = function()
	{
		window.open(this.href);
		return false;
	};
}