<!-- // Begin Hiding from Older Browsers

// ------------------------------------------------------------------------
// Javascripts
// smistry@jrcigars.com
// Jan-Feb 2002
// ------------------------------------------------------------------------


/* ========================================================================
 * emailCheck
 *	checks if a given email address is valid
 *
 *	Inputs: 	emailStr (string)
 *	Outputs: 	various alert messages describing the error
 *	Return:		boolean
 */
 
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. */
	
	// Check if something was entered
	if (emailStr==null || emailStr == "enter email here") {
		alert("Please enter your email address");
		return false;
	}
	
	/* 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 is not valid or there are spaces in the email address.");
	  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>4) {
	   // 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;
}


/* ========================================================================
 * clearText
 *	clear the default value of form input field when mouse sets focus on it
 *
 *	Inputs: 	field (string)
 *	Outputs: 	clears field
 *	Return:		none
 */

function clearText(field) {
	if (field.defaultValue==field.value) {
		field.value = "";
	}
} 


/* ========================================================================
 * checkFields
 *	check that a field value was given
 *
 *	Inputs: 	(string)
 *	Outputs: 	alert
 *	Return:		boolean
 */

function checkFields(input) {
	if (input == "")	{
		alert("Please enter a value");
		return false;
	}
}


/* ========================================================================
 * verify
 *	verify that the user wants to make the changes given
 *
 *	Inputs: 	none
 *	Outputs: 	none
 *	Return:		confirm
 */

function verify(){
	msg = "Please verify the information you entered: \n\n Enable Server = ";
	if (document.forms[0].server[0].checked) {
		msg += document.forms[0].server[0].value;
	} 
	else if (document.forms[0].server[1].checked) {
		msg += document.forms[0].server[1].value;
	}
	else if (document.forms[0].server[2].checked) {
		msg += document.forms[0].server[2].value;
	}
	else if (document.forms[0].server[3].checked) {
		msg += document.forms[0].server[3].value;
	}
	else {
		msg += "Invalid Entry";
   }
 	msg += "\n\n If you are absolutely sure this is correct, click 'OK'";
	return confirm(msg);
}

/* ========================================================================
 * brand submit
 *	submit brand using form variables
 *
 *	Inputs: 	brandname, brandform
 *	Outputs: 	none
 *	Return:		none
 */
 function submitBrand(brandname, brandform){
	brandform.brand.value = brandname;
	brandform.submit();
 }

//  End Hiding from Old Browswers -->

/* ========================================================================
 * display message and relocate
 *	alert then forward to new page
 *
 *	Inputs: 	error_message, location
 *	Outputs: 	alert message and relocates to new location
 */
function display_message(error_message, location){
	alert(error_message);
	document.location.href=location; 
}