function openCredits(url) {
		var x=Math.floor((screen.availWidth-(350 || screen.width))/2)-(screen.width-screen.availWidth);
		var y=Math.floor((screen.availHeight-(450 || screen.height))/2)-(screen.height-screen.availHeight);
		newin = window.open(url,'credits','scrollbars=yes,resizable=yes,width=350,height=450,status=no,location=no,toolbar =no,left='+x+',top='+y);
}

function openVideo(url) {
		var xx=Math.floor((screen.availWidth-(335 || screen.width))/2)-(screen.width-screen.availWidth);
		var yy=Math.floor((screen.availHeight-(300 || screen.height))/2)-(screen.height-screen.availHeight);
		newin2 = window.open(url,'video','scrollbars=no,resizable=no,width=335,height=300,status=no,location=no,toolbar =no,left='+xx+',top='+yy);
}
function openNewsletter(url) {
		var xx=Math.floor((screen.availWidth-(460 || screen.width))/2)-(screen.width-screen.availWidth);
		var yy=Math.floor((screen.availHeight-(295 || screen.height))/2)-(screen.height-screen.availHeight);
		newin3 = window.open(url,'video','scrollbars=yes,resizable=yes,width=460,height=295,status=no,location=no,toolbar =no,left='+xx+',top='+yy);
}