function check_form()
{
  var name = document.form1.name;
  var bname = document.form1.business_name;
  var email = document.form1.email;
  var tel = document.form1.tel;
  var message = document.form1.message;

  ok = false;

  ok = entryExist(name, "Please enter the your name");

  if(ok)
    ok = entryExist(bname, "Please enter the your bussine name");

  if(ok)
  {
    if(!emailCheck(email.value))
    {
      email.value="";
      email.focus();
      return false;
    }
    else
      ok = true;
  }

  if(ok)
    ok = entryExist(tel, "Please provide a contact number") && isNumWithSp(tel, "Your contact number appeared to be invalid");

  if(ok)
    ok = entryExist(message, "Please enter your message");

  if(ok)
    return true;
  else
    return false;
}