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=/^(cc|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 (please check @ and .)");
	   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 email address contains invalid characters.");
	      return false;
	   }
	}

	for (i=0; i<domain.length; i++) 
	{  if (domain.charCodeAt(i)>127) 
 	   {  alert("Ths email address 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 email address does not seem to be valid, please check.");
	      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 email address does not seem to be valid, please check.");
	   return false;
	}

	/* Make sure there's a host name preceding the domain. */
	if (len<2)
	{  alert("The email address does not seem to be valid, please check.");
	   return false;
	}

	/* If we've gotten this far, everything's valid! */
	return true;
}


function checkEmpty() {
	var pass=true;
	var empty=true;

	if (document.TranscriptFrm.StudName.value=='')
	{	alert('You MUST fill in your NAME.');
		document.TranscriptFrm.StudName.focus();
		pass=false;
		return false;
	}

	if (document.TranscriptFrm.StudID.value=='')
	{	alert('You MUST fill in your STUDENT ID.');
		document.TranscriptFrm.StudID.focus();
		pass=false;
		return false;
	}

	if (document.TranscriptFrm.Address.value=='')
	{	alert('You MUST fill in your ADDRESS.');
		document.TranscriptFrm.Address.focus();
		pass=false;
		return false;
	}

	if (document.TranscriptFrm.Email.value=='')
	{	alert('You MUST fill in your EMAIL.');
		document.TranscriptFrm.Email.focus();
		pass=false;
		return false;
	}
	else
	{	if (emailCheck(document.TranscriptFrm.Email.value)==false)
		{	document.TranscriptFrm.Email.focus();
			pass=false;
			return false;
		} 
	}
	
	if (document.TranscriptFrm.Course.value=='')
	{	alert('You MUST fill in your COURSE.');
		document.TranscriptFrm.Course.focus();
		pass=false;
		return false;
	}

	if (document.TranscriptFrm.Reprint_Sem01.value=='')
	{	alert('You MUST fill in the exam SEMESTER.');
		document.TranscriptFrm.Reprint_Sem01.focus();
		pass=false;
		return false;
	}
	
	if (document.TranscriptFrm.Reprint_Year01.value=='')
	{	alert('You MUST fill in the exam YEAR.');
		document.TranscriptFrm.Reprint_Year01.focus();
		pass=false;
		return false;
	}
	
	if (document.TranscriptFrm.Reprint_Copy01.value=='')
	{	alert('You MUST fill in the NO. OF COPIES.');
		document.TranscriptFrm.Reprint_Copy01.focus();
		pass=false;
		return false;
	}	
	
	if (!pass)
		return false;
	else
		return true;
}

function checkZero(itemName) {
        itemField = eval('document.TranscriptFrm.' + itemName)
	numField = eval('document.TranscriptFrm.' + itemName + 'Num')
	if ((eval(numField.value)==0) || (eval(numField.value)==null))
              {  itemField.checked=0;
                 numField.value='';
                 numField.disabled=true;
              }
}

//  End -->
