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;
}

function parseName(srcStr,findStr)
{   var returnStr = '';
	var findStrLen = findStr.length;
	var startStr = srcStr.indexOf(findStr);
	if (startStr != -1)
	{ // get the string 
		var endStr = srcStr.indexOf("&",startStr + findStrLen);
		if (endStr != -1)
			returnStr = srcStr.substring(startStr + findStrLen,endStr);
		else // no & so just retrun what is leftover
			returnStr = srcStr.substring(startStr + findStrLen);
	}
	return returnStr;
}
function parseRetUrl(srcStr,findStr)
{   var returnStr = '';
	var findStrLen = findStr.length;
	var startStr = srcStr.indexOf(findStr);
	if (startStr != -1)
	{
 		returnStr = srcStr.substring(startStr + findStrLen);
	}
	return returnStr;
}

function replaceChar(srcStr,findStr,replaceStr)
{   var returnStr = '';
	var arrayStr = srcStr.split(findStr);
	if (arrayStr.length>=0)
	{
	 returnStr = arrayStr.join(replaceStr);
	}
	return returnStr;
}

function splitStr(srcStr,findStr)
{ 	var arrayStr = srcStr.split(findStr);
	return arrayStr;
}

function doColor(clr){ 
  window.event.srcElement.style.color=clr;
}

function doUnderline(uline){ 
  window.event.srcElement.style.textDecoration=uline;
}

function doUnderlineOut(){
  window.event.srcElement.style.textDecoration="none";
}

function doSideBar() {
  var srcElement, parentElement;
  srcElement = window.event.srcElement;
  parentElement = srcElement.parentElement;
  //alert(parentElement.style.bordertop)
  if(parentElement.bgColor=="#0080c0")
  {
      parentElement.bgColor = "#8080c0";
      srcElement.style.color = "#ffffff";
  }else{
      parentElement.bgColor = "#0080c0";
      srcElement.style.color = "#000000";
  }
}

function doSideBar2() {
  var srcElement;
  srcElement = window.event.srcElement;  
  if(srcElement.bgColor=="#336699")
  {
      srcElement.bgColor = "#E8E8D2";
      srcElement.style.color = "#000000";
  }else{
      srcElement.bgColor = "#336699";
      srcElement.style.color = "#FFFFFF";      
  }
}


function doShowDesc(){
	var targetId, srcElement, targetElement;
    srcElement = window.event.srcElement;
    
     targetId = srcElement.id + "d";
     targetElement = document.all(targetId);
     if (targetElement.style.display == "none") {
        targetElement.style.display = "";
		srcElement.src = "http://members.home.com/abstractvb/images/up-s.gif";
     }else{
		targetElement.style.display="none";
		srcElement.src = "http://members.home.com/abstractvb/images/down-s.gif";
	 }
}	

function doShowMenu(){
    var targetId, srcElement, targetElement;
    srcElement = window.event.srcElement;
    
     targetId = srcElement.id + "d";
     targetElement = document.all(targetId);
     if (targetElement.style.display == "none") {
        targetElement.style.display = "";
     }else{
	targetElement.style.display="none";
     }
}	
//-->