function o(nodeName) {
	return document.getElementById(nodeName);
};

function wopen(url, width, height) {
	var scrollBars='no';
	if (width+100 > screen.width || height + 50 > screen.height ) scrollBars='yes';
	window.open(url, '', 'width='+(width*1+100*1)+'px, height='+(height*1+50*1)+'px, scrollbars='+scrollBars);
	return false;
};