//The following are global variables.
//They define the DOM differences for IE and NN.

var saveListBackgroundColor = null;

function high(obj) {
	saveListBackgroundColor = obj.style.backgroundColor ;
	
	if (obj.style != null) {
		obj.style.backgroundColor = 'rgb(220,232,236)';
	}
}

function low(obj) {
	if (obj.style != null) {
		obj.style.backgroundColor = saveListBackgroundColor;
	}
}
if (navigator.appName == "Netscape") {
    var layerRef="document.layers";
    var styleSwitch="";
} else {
    var layerRef="document.all";
    var styleSwitch=".style";
}
var subMenus = new Array();


if (document.layers) {
    //document.captureEvents(Event.MOUSEMOVE);
}

document.onmousemove = handlerMM;
function handlerMM(e){
    x = (document.layers) ? e.pageX-self.pageXOffset : 0;//e.clientX
    y = (document.layers) ? e.pageY-self.pageYOffset : 0;//e.clientY
}

//Basic show layer script.
//Plug in the name of the layer as a parameter when the function is called.

function showLayer(layerName) {
    eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
}

//Hide layer script that hides any layers in the subMenus array.

function hideLayer() {
    for (var i = 0; i <= subMenus.length - 1; i++) {
        if (eval(layerRef+'["'+subMenus[i]+'"]'+styleSwitch+'.visibility="visible"')) {
            eval(layerRef+'["'+subMenus[i]+'"]'+styleSwitch+'.visibility="hidden"');
        }
    }
}

//Netscape uses its browser-specific captureEvents().
//IE uses its browser-specific toElement().

function offSubMenus() {

    for (var i = 0; i <= subMenus.length -1; i++) {
        if (eval(layerRef+ '["'+subMenus[i]+'"]' + '.contains(window.event.toElement)') == false) {
            eval(layerRef+ '["'+subMenus[i]+'"]' +styleSwitch+ '.visibility = "hidden"');
        }
    }
}


function goTo(comp, dest)
{
    var url = './' + comp + '?next_nav='+dest;
//    document.write(url);
    window.location = url;
    return false;
}

function goTo1(comp, dest,parm1)
{
    var url = './' + comp + '?next_nav='+dest+'&parm1='+parm1;
//    document.write(url);
    window.location = url;
    return false;
}


function sgoTo(dest)
{
    document.forms[0].next_nav.value = dest;
    document.forms[0].submit();
    return false;
}

function sgoTo1(dest,parm1)
{
    this.className='font0';
    document.forms[0].next_nav.value = dest;
    document.forms[0].parm1.value = parm1;
    document.forms[0].submit();
    return false;
}

function limitlength(formobj, e, size)
{
    returnvalue=true;
    if (!e.which && formobj.value.length>=size) //IE
      returnvalue=false;
    else if (e.which && e.which!=8 && formobj.value.length>=size) //NS4, NS6+ (allow backspace key)
      returnvalue=false;
    return returnvalue;
}

function makeChecked(cBox)
{
  cBox.checked = true;
}

function makeChanged(cBox)
{
  cBox.value = "Y";
}

function goToNewSubOffer(alias,offerid)
{
    var url = './' + alias + '?next_nav=/offer_maintenance.jsp&mainofferid='+offerid;
    window.location = url;
    return false;

}

function goToEditMainOffer(alias,offerid, mainofferid, bookid, pieceid)
{
    var url = './' + alias + '?next_nav=/offer_maintenance.jsp&offer_id='+offerid;
    //+'&mainofferid='+mainofferid +
    //	'&bookid=' + bookid + '&pieceid=' + pieceid;
    window.location = url;
    return false;

}

function goToOrdering(alias, offerid)
{
  var url = './' + alias + '?next_nav=/ordering.jsp&offer_id='+offerid;
  window.location = url;
    return false;
}


// Validation routines-----------------------

function validateValue( strValue, strMatchPattern ) {
/************************************************
DESCRIPTION: Validates that a string a matches
  a valid regular expression value.

PARAMETERS:
   strValue - String to be tested for validity
   strMatchPattern - String containing a valid
      regular expression match pattern.

RETURNS:
   True if valid, otherwise false.
*************************************************/
var objRegExp = new RegExp( strMatchPattern);

 //check if string matches pattern
 return objRegExp.test(strValue);
}


function charInString(c,s)
{
	for(i=0;i<s.length;i++){
		if(s.charAt(i)==c)
	    return true;
    }
    return false;
}

function stripInitialWhiteSpace(s)
{
      var i=0;
      var whitespace = " \t\n\r";
      while((i<s.length)&&charInString(s.charAt(i),whitespace))
            i++;
            return s.substring(i,s.length);
}


function isEmpty(sVal)
{
  if (stripInitialWhiteSpace(v.toString()) == "" )
  {
    return true;
  }
  else
  {
    return false;
  }
}

function isInt(sVal)
{
  var val = parseInt(sVal);
  var newval = "" + val;
  if (newval != sVal)
  {
    return false;
  }
  return true;
}

function isValidDecimals(fieldValue, decallowed) 
{

 //decallowed = 2;  // how many decimals are allowed?
  if (isNaN(fieldValue) || fieldValue == "") 
  {
	  
    return false;
  }
  else 
  {  
    if (fieldValue.indexOf('.') == -1) fieldValue += ".";
    dectext = fieldValue.substring(fieldValue.indexOf('.')+1, fieldValue.length);

    if (dectext.length > decallowed)
    {
	    return false;
    }
    else 
    {
      return true;
    }
   }
}


function isValidDecimals(fieldValue, decallowed, maxAmount) 
{
  if (isNaN(fieldValue) || fieldValue == "") 
  {
    return false;
  }
  
  val = new Number(fieldValue);
  max = new Number(maxAmount);
  if (val > max)
  {
    return false;
  }
  else 
  {  
    if (fieldValue.indexOf('.') == -1) fieldValue += ".";
    dectext = fieldValue.substring(fieldValue.indexOf('.')+1, fieldValue.length);

    if (dectext.length > decallowed)
    {
	    return false;
    }
    else 
    {
      return true;
    }
   }
}

function isValidDecimals(fieldValue, decallowed, maxAmount, minAmount) 
{
  if (isNaN(fieldValue) || fieldValue == "") 
  {
    return false;
  }
  
  val = new Number(fieldValue);
  max = new Number(maxAmount);
  minV = new Number(minAmount);
  if (val > max || val <= minV)
  {
    return false;
  }
  else 
  {  
    if (fieldValue.indexOf('.') == -1) fieldValue += ".";
    dectext = fieldValue.substring(fieldValue.indexOf('.')+1, fieldValue.length);

    if (dectext.length > decallowed)
    {
	return false;
    }
    else 
    {
      return true;
    }
   }
}


function isNumberLower(lowVal, highVal)
{
  low = new Number(lowVal);
  high = new Number(highVal);
  if (low < high)
  {
    return true;
  }
  return false;
 
}

function isNumberLowerOrEqual(lowVal, highVal)
{
  low = new Number(lowVal);
  high = new Number(highVal);
  if (low > high)
  {
    return false;
  }
  return true;
}

function checkdate(objName) 
{
  var datefield = objName;

  if (chkdate(objName) == false) 
  {
    //datefield.select();
    //alert("That date is invalid.  Please try again.");
    //datefield.focus();
    return false;
  }
  else 
  {
    return true;
  }
}

function chkdate(objName) 
{
  var strDatestyle = "US"; //United States date style
  //var strDatestyle = "EU";  //European date style
  var strDate;
  var strDateArray;
  var strDay;
  var strMonth;
  var strYear;
  var intday;
  var intMonth;
  var intYear;
  var booFound = false;
  var datefield = objName;
  var strSeparatorArray = new Array("-"," ","/",".");
  var intElementNr;
  var err = 0;
  var strMonthArray = new Array(12);
  strMonthArray[0] = "Jan";
  strMonthArray[1] = "Feb";
  strMonthArray[2] = "Mar";
  strMonthArray[3] = "Apr";
  strMonthArray[4] = "May";
  strMonthArray[5] = "Jun";
  strMonthArray[6] = "Jul";
  strMonthArray[7] = "Aug";
  strMonthArray[8] = "Sep";
  strMonthArray[9] = "Oct";
  strMonthArray[10] = "Nov";
  strMonthArray[11] = "Dec";
  strDate = datefield.value;
	
  if (strDate.length < 1) 
  {
    return false;
  }
	
  for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) 
  {
    if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) 
    {
      strDateArray = strDate.split(strSeparatorArray[intElementNr]);
      if (strDateArray.length != 3) 
      {
        err = 1;
        return false;
      }
      else 
      {
        strDay = strDateArray[0];
        strMonth = strDateArray[1];
        strYear = strDateArray[2];
      }
      booFound = true;
     }
  }
  if (booFound == false) 
  {
    if (strDate.length>5) 
    {
      strDay = strDate.substr(0, 2);
      strMonth = strDate.substr(2, 2);
      strYear = strDate.substr(4);
   }
   else
   {
     return false;
   }
  }
  if (strYear.length == 2) 
  {
    strYear = '20' + strYear;
  }
  // US style
  if (strDatestyle == "US") 
  {
    strTemp = strDay;
    strDay = strMonth;
    strMonth = strTemp;
  }
  intday = parseInt(strDay, 10);
  if (isNaN(intday)) 
  {
    err = 2;
    return false;
  }
  intMonth = parseInt(strMonth, 10);
  if (isNaN(intMonth)) 
  {
    for (i = 0;i<12;i++) 
    {
      if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) 
      {
        intMonth = i+1;
        strMonth = strMonthArray[i];
        i = 12;
      }
    }
    if (isNaN(intMonth)) 
    {
      err = 3;
      return false;
    }
  }
  intYear = parseInt(strYear, 10);
  if (isNaN(intYear)) 
  {
    err = 4;
    return false;
  }
  if (intMonth>12 || intMonth<1) 
  {
    err = 5;
    return false;
  }
  if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) 
  {
    err = 6;
    return false;
  }
  if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) 
  {
    err = 7;
    return false;
  }
  if (intMonth == 2) 
  {
    if (intday < 1) 
    {
      err = 8;
      return false;
    }
    if (LeapYear(intYear) == true) 
    {
      if (intday > 29) 
      {
        err = 9;
        return false;
      }
    }
    else 
    {
      if (intday > 28) 
      {
        err = 10;
        return false;
      }
    }
  }
  
  return true;
}

function LeapYear(intYear) 
{
  if (intYear % 100 == 0) 
  {
    if (intYear % 400 == 0) { return true; }
  }
  else 
  {
    if ((intYear % 4) == 0) { return true; }
  }
  return false;
}

function doDateCheck(from, to) 
{
  if (Date.parse(from.value) <= Date.parse(to.value)) 
  {
    return true;
  }
  else 
  {
    if (from.value == "" || to.value == "") 
      return false;
    else 
      return false; //alert("To date must occur after the from date.");
  }
}





  
  
 
<!-- This script and many more are available free online at -->
  <!-- The JavaScript Source!! http://javascript.internet.com -->
  
  <!-- V1.1.3: Sandeep V. Tamhankar (stamhankar@hotmail.com) -->
  <!-- Original:  Sandeep V. Tamhankar (stamhankar@hotmail.com) -->
  <!-- Changes:
  /* 1.1.4: Fixed a bug where upper ASCII characters (i.e. accented letters
  international characters) were allowed.
  
  1.1.3: Added the restriction to only accept addresses ending in two
  letters (interpreted to be a country code) or one of the known
  TLDs (com, net, org, edu, int, mil, gov, arpa), including the
  new ones (biz, aero, name, coop, info, pro, museum).  One can
  easily update the list (if ICANN adds even more TLDs in the
  future) by updating the knownDomsPat variable near the
  top of the function.  Also, I added a variable at the top
  of the function that determines whether or not TLDs should be
  checked at all.  This is good if you are using this function
  internally (i.e. intranet site) where hostnames don't have to 
  conform to W3C standards and thus internal organization e-mail
  addresses don't have to either.
  Changed some of the logic so that the function will work properly
  with Netscape 6.
  
  1.1.2: Fixed a bug where trailing . in e-mail address was passing
  (the bug is actually in the weak regexp engine of the browser; I
  simplified the regexps to make it work).
  
  1.1.1: Removed restriction that countries must be preceded by a domain,
  so abc@host.uk is now legal.  However, there's still the 
  restriction that an address must end in a two or three letter
  word.
  
  1.1: Rewrote most of the function to conform more closely to RFC 822.
  
  1.0: Original  */
  // -->
  
  <!-- Begin
  function emailCheck (emailStr) {
  
  /* 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;
     }
  }
  return true;
  }
  
  // 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;
  }
  
  // If we've gotten this far, everything's valid!
  return true;
  }

// End of Validation routines ---------------