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) { //v3.0
  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); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

// This function will trim leading and/or trailing spaces from a string
// arg = the value you wish to have trimmed..
// func = "left" for Ltrim(), "right" for RTrim() or "both" for Trim()

function trim(arg,func) {
        var trimvalue = "";
        arglen = arg.length;
        if (arglen < 1) return trimvalue;

        if (func == "left" || func== "both") {
                i = 0;
                pos = -1;
                while (i < arglen) {
                        if (arg.charCodeAt(i) != 32 &&
!isNaN(arg.charCodeAt(i))) {
                                pos = i;
                                break;
                        }
                        i++;
                }
        }

        if (func == "right" || func== "both") {
                var lastpos = -1;
                i = arglen;
                while (i >= 0) {
                        if (arg.charCodeAt(i) != 32 &&
!isNaN(arg.charCodeAt(i))) {
                                lastpos = i;
                                break;
                        }
                        i--;
                }
        }

        if (func == "left") {
                        trimvalue = arg.substring(pos,arglen-1);
                }

        if (func == "right") {
                trimvalue = arg.substring(0,lastpos+1);
        }

        if (func == "both") {
                trimvalue = arg.substring(pos,lastpos + 1);
        }

        return trimvalue;

}

function registration_verify(){
    if(trim(document.forms[1].fld_first_name.value,"both")==""){
        alert("Please enter your first name.");
        return false;
        }
    if(trim(document.forms[1].fld_last_name.value,"both")==""){
        alert("Please enter your last name.");
        return false;
        }
    if(trim(document.forms[1].fld_comp_name.value,"both")==""){
        alert("Please enter your company name.");
        return false;
        }
    if(trim(document.forms[1].fld_comp_title.value,"both")==""){
        alert("Please enter your title.");
        return false;
        }
    if(trim(document.forms[1].fld_email.value,"both")==""){
        alert("Please enter your email address.");
        return false;
        }
    if(trim(document.forms[1].fld_interest_type.value,"both")==""){
        alert("Please enter your interest type.");
        return false;
        }
    if(trim(document.forms[1].fld_company_industry.value,"both")==""){
        alert("Please enter your industry.");
        return false;
        }
        
if(trim(document.forms[1].fld_cc_holder.value,"both")==""){
        alert("Please enter credit card holder's name.");
        return false;
        }
        
if(trim(document.forms[1].fld_cc_num.value,"both")==""){
        alert("Please enter credit card number.");
        return false;
        }
        
        
     // verify email is ok
     var resultVerifyEmail = emailCheck(trim(document.forms[1].fld_email.value,"both"));
     if ( resultVerifyEmail == false ) {
             return false;
     }
     
     // verify credit card type
     var resultVerifyCCType = isCardMatch(trim(document.forms[1].fld_cc_type.value,"both"), trim(document.forms[1].fld_cc_num.value,"both"));
     if (resultVerifyCCType == false) {
     	alert("The credit card number does not match the type of the credit card type specified. Please select the appropriate credit card and re-enter the number.");
     	return false;
     }
          
     // verify credit card number
     var resultVerifyCCNumber = isCreditCard(trim(document.forms[1].fld_cc_num.value, "both"));
     if ( resultVerifyCCNumber == false ) {
     	alert("Please enter a valid credit card number.");
     	return false;
     }

    return true;
  }
  
/* 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  */

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

//===================================
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 mailinglist_verify() {
//===================================
    if(trim(document.forms[0].email.value,"both")==""){
        alert("Please enter your email address.");
        return false;
        }
    return( emailCheck(trim(document.forms[0].email.value,"both")) );     
}

//===================================
function unsubscribe_verify() {
//===================================
    if(trim(document.forms[1].email.value,"both")==""){
        alert("Please enter your email address.");
        return false;
        }
    return( emailCheck(trim(document.forms[1].email.value,"both")) );     
}


//===================================
function recommendus_verify() {
//===================================
    if(trim(document.forms[1].fld_from_email.value,"both")==""){
        alert("Please enter your email address.");
        return false;
    }
    if(trim(document.forms[1].fld_to_email.value,"both")==""){
        alert("Please enter your friend's email address.");
        return false;
    }
    if(trim(document.forms[1].fld_from_name.value,"both")==""){
        alert("Please enter your full name.");
        return false;
    }
    if(trim(document.forms[1].fld_to_name.value,"both")==""){
        alert("Please enter your friend's full name.");
        return false;
    }
    
    var valid_from_email = emailCheck(trim(document.forms[1].fld_from_email.value,"both"));
    if (valid_from_email==false ) {
        alert( "Your email address seems to be incorrect. Please type your correct email address.");
    	return ( false );
    }
    
    var valid_to_email = emailCheck(trim(document.forms[1].fld_to_email.value,"both"));
        if (valid_from_email==false ) {
            alert( "Your first friend's email address seems to be incorrect. Please type your friend's correct email address.");
        	return ( false );
    }
    
    var friend_email_2 = trim(document.forms[1].fld_to_email_2.value,"both");
    var friend_email_3 = trim(document.forms[1].fld_to_email_3.value,"both");
    var friend_email_4 = trim(document.forms[1].fld_to_email_4.value,"both");
    var friend_email_5 = trim(document.forms[1].fld_to_email_5.value,"both");
    
    if (friend_email_2 != "") {
    	if ( emailCheck(friend_email_2) == false ) {
            alert( "Your second friend's email address seems to be incorrect. Please type your friend's correct email address.");
            return ( false );
    	}
    }

    if (friend_email_3 != "") {
    	if ( emailCheck(friend_email_3) == false ) {
            alert( "Your third friend's email address seems to be incorrect. Please type your friend's correct email address.");
            return ( false );
    	}
    }

    if (friend_email_4 != "") {
    	if ( emailCheck(friend_email_4) == false ) {
            alert( "Your fourth friend's email address seems to be incorrect. Please type your friend's correct email address.");
            return ( false );
    	}
    }

    if (friend_email_5 != "") {
    	if ( emailCheck(friend_email_5) == false ) {
            alert( "Your fifth friend's email address seems to be incorrect. Please type your friend's correct email address.");
            return ( false );
    	}
    }
    
    return ( true );
}

//===================================
function feedback_verify() {
//===================================
    if(trim(document.forms[1].fld_from_name.value,"both")==""){
        alert("Please enter your full name.");
        return false;
    }
    if(trim(document.forms[1].fld_from_email.value,"both")==""){
        alert("Please enter your email address.");
        return false;
    }
    var valid_from_email = emailCheck(trim(document.forms[1].fld_from_email.value,"both"));
    if (valid_from_email==false ) {
        alert( "Your email address seems to be incorrect. Please type your correct email address.");
    	return ( false );
    }
    if(trim(document.forms[1].fld_subject.value,"both")==""){
        alert("Please enter a subject for your feedback.");
        return false;
    }
    if(trim(document.forms[1].fld_comments.value,"both")==""){
        alert("Please enter your comments.");
        return false;
    }
    
    
    return ( true );
}


//  End