function isEmail(elm) {
    if (elm.value.indexOf("@") == "-1" ||
        elm.value.indexOf(".") == "-1" ||
        elm.value == "")
    return true;
    else return false;
}

function checkData() {

	if (document.form.fullname.value.length == 0) {
	alert("Please enter your name. ");
	form.fullname.focus();
	return false};

	if (document.form.company.value.length == 0) {
	alert("Please enter your Company name. ");
	form.company.focus();
	return false };

	if (document.form.address1.value.length == 0) {
	alert("Please enter your address. ");
	form.address1.focus();
	return false };

	if (document.form.city.value.length == 0) {
	alert("Please enter your City ");
	form.city.focus();
	return false };

	if (document.form.state.value.length == 0) {
	alert("Please enter your State ");
	form.state.focus();
	return false };

	if (document.form.zip.value.length == 0) {
	alert("Please enter your Zip or Postal Code ");
	form.zip.focus();
	return false };
	
	if (document.form.phone.value.length == 0) {
	alert("Please enter your Phone. ");
	form.phone.focus();
	return false };

	if (isEmail(document.form.email) == true) {
   	alert("Please enter a valid eMail Address.");
	form.email.focus();
  	return false;
  	}
	
	if (document.form.architect.checked == false &&
    document.form.engineer.checked == false &&
	document.form.electrician.checked == false &&
    document.form.other.checked == false ) {
    alert("Please enter your Profession. ");
    return false };
	
	if (document.form.other.checked == true && document.form.otherprofession.value.length == 0)  
	{
    alert("Please specify your Profession. ");
	form.otherprofession.focus();
    return false };
	
return true;
}