function validate(form){
    if (form.companyname.value == "") { 
      form.companyname.focus();
      alert("Please enter the company name. Type 'NONE' if it's not aplicable.");  
      return false;
    }
    if (form.firstname.value == "") { 
      form.firstname.focus();
      alert("Please enter your first name.");  
      return false;
    }
    if (form.lastname.value == "") { 
      form.lastname.focus();
      alert("Please enter your last name.");  
      return false;
    }
    if (form.countrycode.value == "") {
      form.countrycode.focus();
      alert("Please enter your country.");
      return false;
    }
    if (!(emailCheck(form.email.value, "Email"))) {
      form.email.focus();
      return false;
    }
    if (form.subject.value == "") { 
      form.subject.focus();
      alert("Please enter the subject");  
      return false;
    }
    if (form.incomingmessage.value == "") { 
      form.incomingmessage.focus();
      alert("Your message has no body content. Please insert a message.");  
      return false;
    }
    return true;
  }
  function emailCheck (emailStr, fieldname) {
  var checkTLD=1;
  var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
  var emailPat=/^(.+)@(.+)$/;
  var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
  var validChars="\[^\\s" + specialChars + "\]";
  var quotedUser="(\"[^\"]*\")";
  var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
  var atom=validChars + '+';
  var word="(" + atom + "|" + quotedUser + ")";
  var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
  var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
  var matchArray=emailStr.match(emailPat);
  if (matchArray==null) {
  alert(fieldname + "address seems incorrect (check @ and .'s)");
  return false;
  }
  var user=matchArray[1];
  var domain=matchArray[2];
  for (i=0; i<user.length; i++) {
  if (user.charCodeAt(i)>127) {
  alert(fieldname + "username contains invalid characters.");
  return false;
     }
  }
  for (i=0; i<domain.length; i++) {
  if (domain.charCodeAt(i)>127) {
  alert(fieldname + "domain name contains invalid characters.");
  return false;
     }
  }
  if (user.match(userPat)==null) {
  alert(fieldname + "username doesn't seem to be valid.");
  return false;
  }
  var IPArray=domain.match(ipDomainPat);
  if (IPArray!=null) {
  for (var i=1;i<=4;i++) {
  if (IPArray[i]>255) {
  alert(fieldname + "destination IP address is invalid!");
  return false;
     }
  }
  return true;
  }
  var atomPat=new RegExp("^" + atom + "$");
  var domArr=domain.split(".");
  var len=domArr.length;
  for (i=0;i<len;i++) {
  if (domArr[i].search(atomPat)==-1) {
  alert(fieldname + "domain name does not seem to be valid.");
  return false;
     }
  }
  if (checkTLD && domArr[domArr.length-1].length!=2 && 
  domArr[domArr.length-1].search(knownDomsPat)==-1) {
  alert(fieldname + "address must end in a well-known domain or two letter country.");
  return false;
  }
  if (len<2) {
  alert(fieldname + "address is missing a hostname!");
  return false;
  }
  return true;
  } // emailCheck
  
  // validate iwt trial form
  
    function validate_iwt_trial_form(form){
    if (form.companyname.value == "") { 
      form.companyname.focus();
      alert("Please enter the company name. Type 'NONE' if it's not aplicable.");  
      return false;
    }
    if (form.firstname.value == "") { 
      form.firstname.focus();
      alert("Please enter your first name.");  
      return false;
    }
    if (form.lastname.value == "") { 
      form.lastname.focus();
      alert("Please enter your last name.");  
      return false;
    }
    if (form.countrycode.value == "") {
      form.countrycode.focus();
      alert("Please enter your country.");
      return false;
    }
    if (!(emailCheck(form.email.value, "Email"))) {
      form.email.focus();
      return false;
    }
    if (form.website_url.value == "") { 
      form.website_url.focus();
      alert("Please enter the Website URL you want to register the trial for.");  
      return false;
    }
    return true;
  }