function tellafriend(url,title,w,h) { //v2.0
	var purl,nurl;
	purl=location.href;
	if(screen.width){
	 var winl = (screen.width - w)/2;
	 var wint = (screen.height - h)/2;
	}else{
	 winl = 0;wint =0;
	}
	if (winl < 0) winl = 0;
	if (wint < 0) wint = 0;
	var settings = 'height=' + h + ',';
	settings += 'width=' + w + ',';
	settings += 'top=' + wint + ',';
	settings += 'left=' + winl + ',';
	settings += 'scrollbars=false, ';
	settings += 'resizable=false, ';
	settings += 'status=no';
	nurl = url + '?tellafriend=' + purl + '&title=' + title;
	var newPopupWin = window.open(nurl,'Tell_A_Friend',settings);
	newPopupWin.window.focus();
	return false;
}