function popup(url, width, height, name)  {

	// If google Chrome, make height size  = height + 1px :)
	if (navigator.appVersion.indexOf('Chrome')>0) {
		height	= height+4;
	}

	var left   = (screen.width  - width)/2;
	var top    = (screen.height - height)/2;
	var params = 'width='+width+', height='+height;
	params += ', top='+top+', left='+left;
	params += ', directories=no';
	params += ', location=no';
	params += ', menubar=no';
	params += ', resizable=no';
	params += ', scrollbars=no';
	params += ', status=no';
	params += ', toolbar=no';

	if(name == null) {
		broadcasting = window.open(url, 'windowname5', params);
	} else {
		broadcasting = window.open(url, name, params);
	}
	if (window.focus) {
			broadcasting.focus()
	}
	return false;
}