function keretlogin() {
  x=document.keretloginform;
  if (x.username.value.length==0) {
  	alert("Kérem adja meg a felhasználónevét!");
  	return;
  }
  if (x.password.value.length==0) {
  	alert("Kérem adja meg a jelszavát!");
  	return;
  }
  x.submit();
}

//EUB
function OpenBrWindow(theURL,winName,features, myWidth, myHeight, isCenter) {
  if(window.screen)if(isCenter)if(isCenter=="true"){
    var myLeft = (screen.width-myWidth)/2;
    var myTop = (screen.height-myHeight)/2;
    features+=(features!='')?',':'';
    features+=',left='+myLeft+',top='+myTop;
  }
  window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);
}
//EUB