function valida(){
   log = document.loginForm.elements['login'].value;
   sea = document.loginForm.elements['senha'].value;
   if ((log != "") && (sea != "")){
      monta_url(log, sea);
      return false;
   }else{
      alert('Preencha todos os campos.');
      return false;
   }
}

function monta_url(log,sea){
   window.location.href = "http://www.unisa.br/pls/prd/pw_login.startup?codpag=2127&login="+log+"&senha="+sea;
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  winName=window.open(theURL,winName,features);
  winName.focus();
}

// exibe/oculta um Layer
function MM_displayHideLayers() { //v3.0
  var i,p,v,obj,args=MM_displayHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3)
    if ((obj=MM_findObj(args[i]))!=null) { 
      v=args[i+2];
      if (obj.style) { 
        obj=obj.style; 
        v=(v=='show')?'block':(v=='hide')?'none':v;
      }
      obj.display=v;
    }
}

function MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}