var oldNavId = null
clearDrops = function() {
	navRoot = document.getElementById("nav");
        for (i=0; i<navRoot.childNodes.length; i++) {
            node = navRoot.childNodes[i];
            
            if (node.nodeName=="LI") {
            	this.className=this.className.replace(" over", "");
			}
		}
}
window.onload=clearDrops;
// JavaScript Document
startList = function() {
	//alert()
	if (/*document.all && */document.getElementById && document.getElementById("nav")) {
		navRoot = document.getElementById("nav");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				// Clear any lingering " over" classes from the last time we were on the page
				re=new RegExp(' over', 'g');
				node.className=node.className.replace(re, "");
			
				node.onmouseover=function() {
					this.className+=" over";
					//light_off(oldNavId)
					//light_on(this.id)
				}
				node.onmouseout=function() {
					re=new RegExp(' over', 'g');
					this.className=this.className.replace(re, "");
					//light_off(this.id)
					//oldNavId = this.id;
				}
			}
		}
	}
}

function light_off(id) {   
    //if (null != id) {
      //  with (document.getElementById(id))
        //    className = className.replace(" over", "");  
    //}
}

function light_on(id) {   
    //if (null != id) {
      //  document.getElementById(id).className+=" over";
    //}
} 

window.onload=startList;


function MM_openBrWindow(theURL,winName,features) 
{ 
//v2.0 
window.open(theURL,winName,features);
}
function MM_preloadImages() 
{ //v3.0 
var d=document; 
if(d.images)
{ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
for(i=0; i<a.length; i++)  
if (a[i].indexOf("#")!=0)
{ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_swapImgRestore() 
{ //v3.0
  var i,x,a=document.MM_sr;
 for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
 x.src=x.oSrc;
}
function MM_findObj(n, d) 
{ //v4.01
  var p,i,x;
  if(!d) d=document;
 if((p=n.indexOf("?"))>0&&parent.frames.length) 
{
    d=parent.frames[n.substring(p+1)].document;
 n=n.substring(0,p);
}
  if(!(x=d[n])&&d.all) x=d.all[n];
 for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++)
 x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n);
 return x;
}


function checkform() {
  var msg = '';
  //email address check
  var emailStr = document.myForm.email.value;

/* The following variable tells the rest of the function whether or not
to verify that the address ends in a two-letter country or well-known
TLD.  1 means check it, 0 means don't. */

var checkTLD=1;

/* The following is the list of known TLDs that an e-mail address must end with. */

var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

/* 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];

// Start by checking that only basic ASCII characters are in the strings (0-127).

for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
alert("Ths username contains invalid characters.");
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert("Ths domain name contains invalid characters.");
return false;
   }
}

// 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;
   }
}
}

// Domain is symbolic name.  Check if it's valid.
 
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
alert("The domain name does not seem to be valid.");
return false;
   }
}

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

if (checkTLD && domArr[domArr.length-1].length!=2 && 
domArr[domArr.length-1].search(knownDomsPat)==-1) {
alert("The address must end in a well-known domain or two letter " + "country.");
return false;
}

// Make sure there's a host name preceding the domain.

if (len<2) {
alert("This address is missing a hostname!");
return false;
}

  //end email address check

  if (document.myForm.email.value == '') {
    msg += "You must enter your E-mail address.\n";
  }
  if (document.myForm.email_confirm.value == '') {
    msg += "You must re-enter your E-mail address.\n";
  }
  if (document.myForm.email_confirm.value != document.myForm.email.value) {
    msg += "The E-mail addresses you entered do not match.\n";
  }
  if (msg != '') {
    alert(msg);
    return false;
  } else {
    return true;
  }
}