function PostcardValidate()
{
	
	if((frmPostcard.chkPic(0).checked == false) && (frmPostcard.chkPic(1).checked == false) && (frmPostcard.chkPic(2).checked == false) && (frmPostcard.chkPic(3).checked == false))
	{
		alert("Please select the picture you would like on your invitation")
		document.frmPostcard.chkPic(0).focus
		return false;
	}					                        
	if (document.frmPostcard.txtTo.value == "")
		{
		window.alert("Please enter the name")
		document.frmPostcard.txtTo.focus();
		return false;
		}
	if (document.frmPostcard.txtEmailAddress.value == "")
		{
		window.alert("Please enter the email address")
		document.frmPostcard.txtEmailAddress.focus();
		return false;
		}
	if (document.frmPostcard.txtYourEmail.value == "")
		{
		window.alert("Please enter your email address")
		document.frmPostcard.txtYourEmail.focus();
		return false;
		}
return true;
}	
		
function checkLength()
{
   var limit = 250;
   if(document.frmPostcard.txtMessage.value.length > limit) 
   {
     alert('You have entered too much data for the Message. You are limited to 250 characters.');
     document.frmPostcard.txtMessage.focus();
     return false;
   }
   return true;
}

function ContestValidate()
{
	if (document.frmContest.txtFullName.value == "")
		{
		window.alert("Please enter your name")
		document.frmContest.txtFullName.focus();
		return false;
		}
	if (document.frmContest.txtEmail.value == "")
		{
		window.alert("Please enter the email address")
		document.frmContest.txtEmail.focus();
		return false;
		}
	if (document.frmContest.txtEmail.value != "")
	{		
	emailStr = document.frmContest.txtEmail.value
	/* 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)")
		document.frmContest.txtEmail.focus();
		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.")
	    document.frmContest.txtEmail.focus();
	    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!")
		        document.frmContest.txtEmail.focus();
			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.")
		document.frmContest.txtEmail.focus();
	    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.")
	   document.frmContest.txtEmail.focus();
	   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)
	   document.frmContest.txtEmail.focus();
	   return false;
	}
	}
return true;
}