function validEmail(email) {
	invalidChars = " /:,#'`$~!%^&*()+\"\;<>?\\|     "
	if (email == "") {   // cannot be empty
		return false;
	}
	for (i = 0; i < invalidChars.length; i++) {     // does it contain any invalid characters?
	badChar = invalidChars.charAt(i)
		if (email.indexOf(badChar,0) > -1) {
			return false;
		}
	}
	atPos = email.indexOf("@",1)	// there must be one "@" symbol
	if (atPos == -1) {
		return false;
	}
	if (email.indexOf("@",atPos+1) != -1) { // and only one "@" symbol
		return false;
	}
	periodPos = email.indexOf(".",atPos)
	if (periodPos == -1) {	// and at least one "." after the "@"
		return false;
	}
	if (periodPos+3 > email.length) {	// must be at least 2 characters after the "."
		return false;
	}
	return true;
}   



function submitForm() {
	var checkThis = check(document.theForm);
	if (checkThis == true) {
		document.theForm.submit();
		return false;
	}
}

function check(item) {	
		if (!validEmail(item.email.value)) {
      alert("Please enter a valid email address.");
      theForm.email.focus();          
      return false;
		}
		if (item.First_Name.value == "") {
			alert("Please provide us with your first name.");
			item.First_Name.focus();
			return false;
		}	
		if (item.Last_Name.value == "") {
			alert("Please provide us with your last name.");
			item.Last_Name.focus();
			return false;
		}			
		if (item.Phone.value == "") {
			alert("Please provide us with your phone number.");
			item.Phone.focus();
			return false;
		}			
	return true;	
}