/*******************************************************************
 * soopa-rollovers.js
 * 7/28/2001
 * www.youngpup.net
 *
 * easiest rollovers on earth, baby!
 * see www.youngpup.net for documentation.
 *******************************************************************/

function soopaSetup() {
	var img, sh, sn, sd
	for (var i = 0; (img = document.images[i]); i++) {
		if (img.getAttribute) {

			sn = img.getAttribute("src");
			sh = img.getAttribute("hsrc");
			sd = img.getAttribute("dsrc");

			if (sn != "" && sn != null) {
				img.n = new Image();
				img.n.src = img.src;
			
				if (sh != "" && sh != null) {
					img.h = new Image();
					img.h.src = sh;
					img.onmouseover = soopaSwapOn
					img.onmouseout  = soopaSwapOff
				}

				if (sd != "" && sd != null) {
					img.d = new Image();
					img.d.src = sd;
					img.onmousedown = soopaSwapDown
				}
			}
		}
	}
}

function soopaSwapOn() {
	this.src = this.h.src;
}

function soopaSwapOff() {
	this.src  = this.n.src;
}

function soopaSwapDown() {
	this.src  = this.d.src;
	this.temp = typeof(document.onmouseup) != 'undefined' && typeof(document.onmouseup) != 'unknown' ? document.onmouseup : "";
	soopaSwapUp.img = this;
	document.onmouseup = soopaSwapUp;
}

function soopaSwapUp() {
	var ths = soopaSwapUp.img;
	ths.src = ths.n.src;
	if (ths.temp) document.onmouseup = ths.temp;
}

// validate 'contact form' fields
function validateContactForm() {
	if(contactform.full_name.value.length<3) {
		alert("Please enter your full name.");
		return false;
	}else if(!emailCheck(contactform.email_address.value)) {
		alert("Please enter a valid email address.");
		return false;
	}
}

// validate 'ecard form' fields
function validateEcardForm() {
	if(ecardform.to_name.value.length<3) {
		alert("Please enter 'To' name.");
		return false;
	}else if(!emailCheck(ecardform.to_email.value)) {
		alert("Please enter a valid 'To' email address.");
		return false;
	}else if(ecardform.fr_name.value.length<3) {
		alert("Please enter 'From' name.");
		return false;
	}else if(!emailCheck(ecardform.fr_email.value)) {
		alert("Please enter a valid 'From' email address.");
		return false;
	}
}

// validate email address
function emailCheck (emailStr) {
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
		return false;
   		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			return false;
	   }
	}
	if (user.match(userPat)==null) {
		alert("The username doesn't seem to be valid.");
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				return false;
		   }
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			return false;
	   }
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {
		return false;
	}
	if (len<2) {
		return false;
	}
	return true;
}