/******************************************************
Autor: INPUT CENTER INFORMÁTICA
Versão: 1.0.0
Autalizado em: 15/09/2010
******************************************************/

function popup(url, largura, altura, scroll, resizable)
{
  
  var posicaoX = (screen.availWidth - largura) / 2;
  var posicaoY = (screen.availHeight - altura) / 2;

  janelaPopup = window.open(url, 'popup', 'status=no,resizable=' + resizable + ',scrollbars=' + scroll + ',menubar=no,width=' + largura + ',height=' + altura + ',left=' + posicaoX + ',top=' + posicaoY);
  janelaPopup.focus();

}