function is_int(value){
  if((parseFloat(value) == parseInt(value)) && !isNaN(parseInt(value))){
      return true;
 } else {
      return false;
 }
}  

function is_not_blank(value){
  if((value != null) && (value != '')){
      return true;
 } else {
      return false;
 }
}

function isEmail(Mail) {
  Mail=Mail.toLowerCase();
  return (Mail.search(/^([a-z]+)([a-z0-9\-\_\.]{1,100})([a-z0-9]+)\@([a-z0-9]+)([a-z0-9\-\.]*)([a-z0-9]+)\.([a-z]{2,6})$/) != -1);
}

function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  }
}

var nbaLPtext = new Array ();
nbaLPtext[0] = '';
nbaLPtext[1] = 'Thank you for signing up to receive information about LEAGUE PASS & LEAGUE PASS BROADBAND for the upcoming year.';
nbaLPtext[2] = 'There was a problem processing your email signup request. Please re-enter a valid email address.';


function nbaLPdisplayText(value){
  if (is_not_blank(value) && is_int(value)){
    if(value == 1) {
      document.write(nbaLPtext[1]);
    }
    else if(value == 2)      
      document.write(nbaLPtext[2]);
    else
      document.write(nbaLPtext[0]);
  }
  else{    
      document.write(nbaLPtext[0]);
  }

}
function nbaLPdisplayForm(value){
  if (is_not_blank(value) && is_int(value)){
    if(value == 1) {
      document.getElementById("nbaLPHdrForm").style.display='none';
    }
  }
}

function submitForm()
{
  if(isEmail(document.nbaLPform.email.value))
    return true;
  else {
    alert(nbaLPtext[2]);
    return false;
  }
  return true;
}