function popUp(URL) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=700,height=540,left = 290,top = 273');");
}

function showPrices(id, id2) {
	document.getElementById(id).style.display = (document.getElementById(id).style.display == 'none' ? '' : 'none');
	document.getElementById(id2).style.display = (document.getElementById(id2).style.display == 'none' ? '' : 'none');
}