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

function Checa(email){
if (document.email.email.value ==""){
alert("Digite seu E-mail");
document.email.email.focus();

}else{
document.email.submit();
}
}

function openf(url,n,w,h){

posx = (screen.width/2)-(w/2);
posy = (screen.height/2)-(h/2);
features = "resizable=no,toolbar=no,status=no,menubar=no,scrollbars=no,width=" + w +",height=" + h + ",top=" + posy + ",left=" + posx;
window.open(url, n, features); void(0);

}

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_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.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')?'visible':(v='hide')?'hidden':v;
    }
    obj.visibility=v;
    //vscroll,hscroll 
    if (navigator.appName!="Netscape") {
       obj.top = parent.frames['mainFrame'].document.body.scrollTop;

       obj.left = obj.zIndex + parent.frames['mainFrame'].document.body.scrollLeft;
       //alert(parent.frames['princ'].document.body.scrollLeft);
    }
   }
}