//
// Javascript
//
// This script file contains functions for validating
// form fields.
//
// Author:       A Schmidt
// Date Written: 05/11/2002
// Copyright:    Beyond Rainbows Web Systems
//               All Rights Reserved.
//

var myMsg = "";

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// If No Preference is selected, turn off other options.
// If Other Options are selected, turn off no preference.
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
function chkUsrPref(myField, myItem) {
	var chkField;
	if (myField == 'usr_map_area') chkField = document.forms[0].elements['usr_map_area[]'];
	else if (myField == 'usr_book_section') chkField = document.forms[0].elements['usr_book_section[]'];
	else if (myField == 'usr_style') chkField = document.forms[0].elements['usr_style[]'];
	else if (myField == 'usr_garage_type') chkField = document.forms[0].elements['usr_garage_type[]'];
	else if (myField == 'usr_age_of_home') chkField = document.forms[0].elements['usr_age_of_home[]'];

	if (myItem == 0) {
		if (chkField[myItem].checked) {
			for (var i = 1; i < chkField.length; i++) {
				chkField[i].checked = false;
			}
		}
	} else {
		if (chkField[myItem].checked) {
			chkField[0].checked = false;
		}
	}
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Check for valid characters.
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
function ValidateNumber(myField, myType) {
	var checkDollar = "0123456789.";
	var checkNbr = "0123456789";
	var checkOK;
	var checkStr = myField;
	var allValid = true;
	var allNum = "";
	var decPoints;

	if (myType == "integer") {
		checkOK = checkNbr;
	} else {
		if (myType == "dollar") {
			checkOK = checkDollar;
		}
	}

	for (i = 0;  i < checkStr.length;  i++) {
		ch = checkStr.charAt(i);
		for (j = 0;  j < checkOK.length;  j++)
			if (ch == checkOK.charAt(j))
				break;
		if (j == checkOK.length) {
			allValid = false;
			break;
		}
		if (ch == ".") {
			allNum += ".";
			decPoints++;
		} else 
			allNum += ch;
	}

	if (myType == "dollar") {
		if (!allValid) {
			myMsg = "must be valid dollar amount.\n Example: 1234.56";
			return (false);
		}
		if (decPoints > 1) {
			myMsg = "must be valid dollar amount.\n Example: 1234.56";
			return (false);
		}
	} else {
		if (myType == "integer") {
			if (!allValid) {
				myMsg = "must be an integer.\nExample: 12345";
				return (false);
			}
		}
	}
	return (true);
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// This script file contains functions for validating
// the email address.
//
// Javascript
//
// Date:        12/23/2000
// Copyright:   Beyond Rainbows Web Systems
//              All Rights Reserved.
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
function emailCheck (emailStr) {
	/* The following pattern is used to check if the entered e-mail address
	fits the user@domain format.  It also is used to separate the username
	from the domain. */
	var emailPat=/^(.+)@(.+)$/;

	/* The following string represents the pattern for matching all special
	characters.  We don't want to allow special characters in the address. 
	These characters include ( ) < > @ , ; : \ " . [ ]    */
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";

	/* The following string represents the range of characters allowed in a 
	username or domainname.  It really states which chars aren't allowed. */
	var validChars="\[^\\s" + specialChars + "\]";

	/* The following pattern applies if the "user" is a quoted string (in
	which case, there are no rules about which characters are allowed
	and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
	is a legal e-mail address. */
	var quotedUser="(\"[^\"]*\")";

	/* The following pattern applies for domains that are IP addresses,
	rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
	e-mail address. NOTE: The square brackets are required. */
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;

	/* The following string represents an atom (basically a series of
	non-special characters.) */
	var atom=validChars + '+'
	/* The following string represents one word in the typical username.
	For example, in john.doe@somewhere.com, john and doe are words.
	Basically, a word is either an atom or quoted string. */
	var word="(" + atom + "|" + quotedUser + ")";

	// The following pattern describes the structure of the user
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");

	/* The following pattern describes the structure of a normal symbolic
	domain, as opposed to ipDomainPat, shown above. */
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");


	/* Finally, let's start trying to figure out if the supplied address is
	valid. */

	/* Begin with the coarse pattern to simply break up user@domain into
	different pieces that are easy to analyze. */
	var matchArray=emailStr.match(emailPat);

	if (matchArray==null) {
		/* Too many/few @'s or something; basically, this address doesn't
		   even fit the general mould of a valid e-mail address. */
		alert("Email address seems incorrect (check @ and .'s)");
		return (false);
	}
	var user=matchArray[1];
	var domain=matchArray[2];

	// See if "user" is valid 
	if (user.match(userPat)==null) {
		// user is not valid
		alert("The username doesn't seem to be valid.");
		return (false);
	}

	/* if the e-mail address is at an IP address (as opposed to a symbolic
	host name) make sure the IP address is valid. */
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		// this is an IP address
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("Destination IP address is invalid!");
				return (false);
			}
		}
		return (true);
	}

	// Domain is symbolic name
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("The domain name doesn't seem to be valid.");
		return (false);
	}

	/* domain name seems valid, but now make sure that it ends in a
	three-letter word (like com, edu, gov) or a two-letter word,
	representing country (uk, nl), and that there's a hostname preceding 
	the domain or country. */

	/* Now we need to break up the domain to get a count of how many atoms
	it consists of. */
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
		domArr[domArr.length-1].length>3) {
		// the address must end in a two letter or three letter word.
		alert("The address must end in a three-letter domain, or two letter country.");
		return (false);
	}

	// Make sure there's a host name preceding the domain.
	if (len<2) {
		var errStr="This address is missing a hostname!";
		alert(errStr);
		return (false);
	}

	// If we've gotten this far, everything's valid!
	return (true);
}

// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Date:        02/16/2002
// Copyright:   Beyond Rainbows Web Systems
//              All Rights Reserved.
// Version:		 Javascript
// Original:  Brian Swalwell
// This script and many more are available free online at
// The JavaScript Source!! http://javascript.internet.com
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
function validateZIP(field) {
	var valid = "0123456789-";
	var hyphencount = 0;

	if (field.length != 5 && field.length != 10) {
		myMsg = "Please enter a valid 5 digit or 5 digit+4 zip code.\nFormat Example: '12345' or '12345-6789'";
		return false;
	}
	for (var i=0; i < field.length; i++) {
		temp = "" + field.substring(i, i+1);
		if (temp == "-") hyphencount++;
		if (valid.indexOf(temp) == "-1") {
			myMsg = "Invalid characters in your zip code.  Please try again.";
			return false;
		}
		if ((hyphencount > 1) || ((field.length==10) && ""+field.charAt(5)!="-")) {
			myMsg = "The hyphen character should be used with a properly \nformatted 5 digit+four zip code, like '12345-6789'.\nPlease try again.";
			return false;
		}
	}
	return true;
}