// JavaScript Document
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) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); 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];}
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MP_ValidateEmail() {
	emailStr = document.contact.email.value;
	//window.alert(emailStr);
	validation = "true";
	if (emailStr.length > 0) {

		/* 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)");
			validation = "false";
			return validation;
		}
		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.");
				validation = "false";
				return validation;
		   }
		}
		for (i=0; i<domain.length; i++) {
			if (domain.charCodeAt(i)>127) {
				alert("Ths domain name contains invalid characters.");
				validation = "false";
				return validation;
		   }
		}
		
		// See if "user" is valid 
		if (user.match(userPat)==null) {
		
			// user is not valid
			alert("The username doesn't seem to be valid.");
			validation = "false";
			return validation;
		}
		
		/* 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!");
					validation = "false";
					return validation;
			   }
			}
			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.");
				validation = "false";
				return validation;
		   }
		}
		
		/* 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.");
			validation = "false";
			return validation;
		}
		
		// Make sure there's a host name preceding the domain.
		if (len<2) {
			alert("This address is missing a hostname!");
			validation = "false";
			return validation;
		}
		
		// If we've gotten this far, everything's valid!
		return true;
	}
}

function MP_ValidateForm(){
	validation =  "true";
	//window.alert("validateForm");
	if (validation == "true"){
		MP_ValidateEmail();
	}
	if (validation == "true"){
		email = document.contact.email.value;
		if (email.length == 0) {
			alert("Please enter your email address.");
			validation = "false";
		}
	}
	
	if (validation == "true"){
		name = document.contact.name.value;
		if (name.length == 0) {
			alert("Please enter your name.");
			validation = "false";
		}
	}
	
	if (validation == "true"){
		message = document.contact.message.value;
		if (message.length == 0) {
			alert("Please enter your message.");
			validation = "false";
		}
	}
	//window.alert("validations done");
	//window.alert("value of validation = " + validation);
	if (validation == "false"){
		//window.alert("failed validation");
		return false;
	}
	//window.alert("passed validation");
}