function verifyRequired() {
  if (document.joinform["name1"].value == "") {
	alert("Please enter your first name.");
	document.joinform["name1"].focus();
    return false;
  }
  if (document.joinform["email1"].value == "") {
    document.joinform["email1"].focus();
    alert("Please enter your email address.");
    return false;
  }
  if (document.joinform["email1"].value != "") {
  	var regexp = /[\w-]+@([\w-]+\.)+[\w-]+/;
	if (!(regexp.test(document.joinform["email1"].value))) { 
    	alert("Please enter a valid email address.");
		return false;
	}
  }
document.forms['joinform'].setAttribute("onsubmit","");
window.setTimeout(function(){ document.forms['joinform'].submit() },200);
return false;

}