// swap images

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
x.src=x.oSrc
;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++)
x=d.forms[i][n]
;
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array;
for(i=0;i<(a.length
-2);i+=3)
  if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src;
x.
src=a[i+2];}
}

// email login

function submit_login()
{
  if (document.implogin.imapuser.value == "") {
        alert('Por favor, introduza o seu username e password');
        document.implogin.imapuser.focus();
        return false;
  }
  else if (document.implogin.pass.value == "") {
        alert('Por favor, introduza o seu username e password');
        document.implogin.pass.focus();
        return false;
  } else {
        document.implogin.loginButton.disabled = true;
        document.implogin.submit();
        return true;
  }
}

// popup help

function prereg()
{
  window.open('helpme1.html','jav','width=420,height=420,resizable=no,scrollbars=yes');
}

//  Begin adsl telephone number test

function validarAdsl(field) {
  var valid = "0123456789";
  var ok = "yes";
  var temp;
  for (var i=0; i<field.value.length;i++) {
    temp = "" + field.value.substring(i,i+1);
    if(valid.indexOf(temp) == "-1") {ok = "no"}
  }
  if(field.value.length<9) {ok="no"}
  if(field.value<210000000) {ok="no"}
  if(field.value>=297000000) {ok="no"}
  if(ok == "no")
  {
      alert('Número inválido! Por favor insira um número de telefone válido da rede fixa');
      field.focus();
      field.select();
      return false;
  }
  else
      return true;
}

// version1 - open in popup
function validateAdsl()
{
  if (validarAdsl(document.form1.telefone_adsl) == true)
  {
    window.open('about:blank','cobert','width=400,height=400,resizable=no,scrollbars=yes');
    return true;
  }
  return false;
}

// version2 - open in the same window or taget 
function validateAdsl2()
{
  if (validarAdsl(document.form1.telefone_adsl) == true)
  {
    return true;
  }
  return false;
}