function openobr(url)
{
var left   = screen.width/2 - 250;
var top    = screen.height/2 - 150;
window.open (url,"obr", config='height=342, width=584, toolbar=no, menubar=no, scrollbars=no, resizable=no,location=no, directories=no, status=no, top=' + top + ', left=' + left);
}