/*
<!-- 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) -->
*/
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=0;

	/* 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) 
	{
		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;
}

function Terms(url, width, height, scrollbars)
{
	window.open(url, "_blank", "width=" + width + ",height=" + height + ",titlebar=yes,toolbar=no,directories=no,location=no,menubar=no,resizable=yes,scrollbars=" + scrollbars + ",status=no,fullscreen=no,channelmode=no");
}

function contactCheck(form)
{
	var		codeElements = 0;

	if (form.contacttype.selectedIndex == 0)
	{
		alert("Please select the most appropriate contact type."); 
		return false;	
	}

	if (!emailCheck(form.data1.value))
		return false;
		
	if (form.data99.value != form.data1.value)
	{
		alert("The email addresses that you have entered are different.");
		return false;
	}

	if (form.data2.value.length == 0)
	{
		alert("Please enter your name.");
		return false;
	}
		
	if (form.message.value.length == 0)
	{
		alert("Please enter a message.");
		return false;
	}
	
	return true;
}

var cookieExpirySet = false;
function CookieSet(Name,Value)
{
	document.cookie = Name + "=" + escape(Value); 
	if (!cookieExpirySet)
	{
		var expiresGMT, now = new Date();
		now.setTime(now.valueOf() + (1000 * 60 * 60 * 24 * 2)); // add two days
		expiresGMT = now.getDate() + "-" + now.getMonth() + "-" + now.getFullYear() + " " + now.getHours() + ":" + now.getMinutes() + ":" + now.getSeconds() + " GMT";
		document.cookie = "expires=" + expiresGMT; 
		cookieExpirySet = true;
	}	
}

function CookieGet(Name,DefaultValue)
{
    var dc		= document.cookie;
    var prefix	= Name + "=";
    var begin	= dc.indexOf("; " + prefix);
    if (begin == -1)
		{
        begin = dc.indexOf(prefix);
        if (begin != 0) return DefaultValue;
		}
    else
        begin += 2;
    var end = document.cookie.indexOf(";", begin);
    if (end == -1)
        end = dc.length;
    return unescape(dc.substring(begin + prefix.length, end));
}