// JavaScript Document
<!-- contactform.asp form validation script -->

 function trim(inStr) {

	var i =0;
	var s=inStr;
	var sOut= "";
	for (i =0; i<s.length; i++) {
		if (s.substr(i, 1) != " " )
			sOut = sOut + s.substr(i, 1);
	}
	
	return sOut;
 }

 function checkData() {
 
 
	if (trim(document.form1.firstname.value) == "") {
		alert("Please enter your first name.");
		document.form1.firstname.focus();
		return false;
	}
	
		if (trim(document.form1.lastname.value) == "") {
		alert("Please enter your last name.");
		document.form1.lastname.focus();
		return false;
	}

	if (trim(document.form1.phone.value) == "") {
		alert("Please enter your phone number.");
		document.form1.phone.focus();
		return false;
	}
		
	var sEmail;
	sEmail = trim(document.form1.submit_by.value);
	
	if (sEmail == "") {
		alert("Please enter your email address.");
		document.form1.submit_by.focus();
		return false;
	}
	
	if (sEmail.indexOf("@") == -1) {
		alert("Your forgot the '@' in your email address.");
		document.form1.submit_by.focus();
		return false;
	}
	
	if (sEmail.indexOf(".") == -1) {
		alert("Your forgot the '.' in your email address.");
		document.form1.submit_by.focus();
		return false;
	}

	
	return true;
}