<!--//
function checkform(id, the_surname, the_name, the_email)
{
 if (document.getElementById("the_surname").value=='')
  {
   alert(the_surname);
   return false;
  } 
 else if (document.getElementById("the_name").value=='')
  {
   alert(the_name);
   return false;
  }
 else if (document.getElementById("the_email").value=='')
  {
   alert(the_email);
   return false;
  }
 else 
  return true;
}

function checkcontactform(id, the_surname, the_name, the_email)
{
 if (document.getElementById("the_surname").value=='')
  {
   alert(the_surname);
   return false;
  } 
 else if (document.getElementById("the_name").value=='')
  {
   alert(the_name);
   return false;
  }
 else if (document.getElementById("the_email").value=='')
  {
   alert(the_email);
   return false;
  }
 else 
  return true;
}

function checkuserform(id, five_characters, same_value, the_email, the_surname, the_name)
{
 if ( (document.getElementById("frm_username").value=='') || (document.getElementById("frm_username").value.length<5) )
  {
   alert(five_characters);
   return false;
  } 
 else if ( (document.getElementById("frm_password").value=='') || (document.getElementById("frm_password").value.length<5) )
  {
   alert(five_characters);
   return false;
  }
 else if ( (document.getElementById("frm_confirmpassword").value=='') || (document.getElementById("frm_confirmpassword").value.length<5) )
  {
   alert(five_characters);
   return false;
  }
 else if (document.getElementById("frm_password").value!=document.getElementById("frm_confirmpassword").value)
  {
   alert(same_value);
   return false;
  }
 else if (document.getElementById("frm_email").value=='')
  {
   alert(the_email);
   return false;
  }
 else if (document.getElementById("frm_surname").value=='')
  {
   alert(the_surname);
   return false;
  } 
 else if (document.getElementById("frm_name").value=='')
  {
   alert(the_name);
   return false;
  }
 else 
  return true;
}

function checkreminder(id, the_email)
{
 if (document.getElementById("frm_email").value=='')
  {
   alert(the_email);
   return false;
  }
 else 
  return true;
}

function changegenre(f, lng, cat, prgcat)
 { 
  var id=f.value;
  window.location="playlist.php?lng=" + lng + "&cat=" + cat + "&genre=" + id + "&pcat=" + prgcat;
 }

function changeartist(f, lng, cat, prgcat, genre)
 { 
  var id=f.value;
  window.location="playlist.php?lng=" + lng + "&cat=" + cat + "&genre=" + genre + "&pcat=" + prgcat + "&artist=" + id;
 }

function changealbum(f, lng, cat, prgcat, genre, artist)
 { 
  var id=f.value;
  window.location="playlist.php?lng=" + lng + "&cat=" + cat + "&genre=" + genre + "&pcat=" + prgcat + "&artist=" + artist + "&album=" + id;
 }
//-->