<!--function checkformcaptcha ( form ){// see http://www.thesitewizard.com/archive/validation.shtml// for an explanation of this script and how to use it on your// own website// ** START **if (form.imgverify.value == "") {alert( "Please enter the Image Verification text." );form.imgverify.focus();return false ;}// ** END **return true ;}//--><!-- This script and many more are available free online at --><!-- The JavaScript Source!! http://javascript.internet.com --><!-- Created by: www.jdstiles.com --><!-- Beginfunction startCalc(){  interval = setInterval("calc()",1);}function calc(){if (autoSumAdForm.mode[0].checked)  document.autoSumAdForm.amount.value = "set digest";if (autoSumAdForm.mode[1].checked)  document.autoSumAdForm.amount.value = "set mail";if (autoSumAdForm.mode[2].checked)  document.autoSumAdForm.amount.value = " ";}function stopCalc(){  clearInterval(interval);}//  End --><!-- Changes:  Sandeep V. Tamhankar (stamhankar@hotmail.com) -->/* 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 --><!-- Begin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).  Please enter a valid email address.")	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.  Please enter a valid email address.")    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! Please enter a valid email address.")		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.  Please enter a valid 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 or four letter word.   alert("The address must end in a three or four-letter domain, or two letter country. Please enter a valid email address.")   return false}// Make sure there's a host name preceding the domain.if (len<2) {   var errStr="This address is missing a hostname!  Please enter a valid email address."   alert(errStr)   return false}// If we've gotten this far, everything's valid!return true;}//  End -->  function validateemail(objName) {        var emailfield = objName;    if (! emailCheck(document.forms[0].email.value)) {                emailfield.select();                emailfield.focus();        return false;    }    return true;  }//  End -->