var newablak=null;
function winOpen(url,n,width,height){
    var sw=screen.width;
    var sh=screen.height;
    var left=sw?(sw-width)/2:0;
    var top=sh?(sh-height)/2:0;
    newablak=window.open(url,n,"width="+width+",height="+height+",top="+top+",left="+left+",resizable=0,location=0,statusbar=0,toolbar=0,scrollbars=0");
}
function megj(szam){
if(x<szam){
    document.getElementById("megj"+x).style.display="block";
}else{
    window.clearInterval(int);
}
x++;
}

function checkKapcs(form){
    var vmi=0
    var len=form.elements.length-1
    for(i=0;i<len;i++){
        if(form.elements[i].value==""){
            form.elements[i].focus()
            vmi=1
            break
        }
    }
    if(vmi){
        alert("Kérjük minden mezőt tölts ki!")
        return false
    }else{
        return true
    }
}

function emailCheck()
{
  var elsopont = document.r.r_user.value.indexOf('.',0);
  var lastpont = document.r.r_user.value.lastIndexOf('.');
  var kukac = document.r.r_user.value.indexOf('@',0);
  var last_kukac = document.r.r_user.value.lastIndexOf('@');
  var email_size = document.r.r_user.value.length;

  if (document.r.r_user.value=='' || kukac==(-1) || kukac==0 || elsopont==0

|| elsopont==(-1) || (lastpont==(email_size-1)) || (kukac==(email_size-1)) ||

((kukac+1)==elsopont) || (kukac!=last_kukac))
    {
     alert('Hibás e-mail cím formátum!')
     document.r.r_user.focus()
     document.r.r_user.select()
     return false;
    }
    return true;
}