function displaymessage()
{
fields = "Hello world!" + document.getElementById('regform').first1.value;
alert(fields);
}
function verify(){
fields = "Please complete the following fields: ";
ret = true;
    if(document.getElementById('regform').first1.value==""){
        fields = fields + "\'First Name\' ";
        ret = false;
        }
    if(document.getElementById('regform').last1.value==""){
        fields = fields + "\'Last Name\' ";
        ret = false;
        }
    if(document.getElementById('regform').address1.value==""){
        fields = fields + "\'Address\' ";
        ret = false;
        }
    if(document.getElementById('regform').city.value==""){
        fields = fields + "\'City\' ";
        ret = false;
        }
    if(document.getElementById('regform').email.value==""){
        fields = fields + "\'E-mail\' ";
        ret = false;
        }
    if(document.getElementById('regform').seminarvenue.value=="-- Please select a seminar venue and date --"){
        fields = fields + "\'Seminar Venue and date\' ";
        ret = false;
        }

if(ret==false){
  alert(fields);
  return false;
  }else{
  return true;
  }
}