function playerWindow() {
	window.open(this.href, 'musicsamp', 'status=0,toolbar=0,location=0,menubar=0,resizable=0,scrollbars=0,height=100,width=400')
}

function instructionsWindow() {
	window.open(this.href, 'instructions', 'width=460,height=450,resizable,scrollbars')
}

var cartWindow;

function paypalWindow() {
	var options = 'scrollbars,location,resizable,status,height=500,width=800,screenX=10,screenY=10,top=10,left=10';
	if (!cartWindow || cartWindow.closed) {
		cartWindow = window.open(url,'cart',options);
	} else {
	// window already exists, so bring it forward
			cartWindow.location.href = url;
			cartWindow.focus();
	}
}