var testresults
  function checkemaile(){
  var str=document.prihlaska.email.value
  var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
  if (filter.test(str))
  testresults=true
  else{
  alert("Zadaná e-mailova adresa je neplatná!")
  testresults=false
  }
  return (testresults)
  }
  function checkbae(){
  if (document.layers||document.getElementById||document.all)
  return checkemaile()
  else
  return true
  }

  function checkemaili(){
  var str=document.inform.email.value
  var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
  if (filter.test(str))
  testresults=true
  else{
  alert("Zadaná e-mailova adresa je neplatná!")
  testresults=false
  }
  return (testresults)
  }
    
  function checkbai(){
  if (document.layers||document.getElementById||document.all)
  return checkemaili()
  else
  return true
  }