function window_open(width, height, src)
{
	nTop = (screen.availWidth-width)/2;
	nLeft = (screen.availHeight-height)/2;
	var strOpts = "resizable=yes,menubar=no,status=no,toolbar=no,height="+height+",width="+width;
	if(navigator.appName.indexOf("Netscape")>=0)
		strOpts = "screenX=" + String( nLeft ) + ",screenY=" + String( nTop ) + "," + strOpts;
	else
		strOpts = "left=" + String( nLeft ) + ",top=" + String( nTop ) + "," + strOpts;
	
	var oWnd = window.open(src, '', strOpts);
}

function check_radio(o) 
{ 
	for (q=0; q<o.length; q++) if (o[q].checked) return true; 
	return false;
}

function open_vote_res() { window_open(500, 400, 'vote_results.aspx'); }