// JS-Email Validation
	function check_email (emailStr) {
		var checkTLD=0; var knownDomsPat=/^(de|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 +")*$"); var matchArray=emailStr.match(emailPat);
		if (matchArray==null) {
			// alert("Email address seems incorrect (check @ and .'s)");
			return false;
		}
		var user=matchArray[1];
		var domain=matchArray[2];
		// Start by checking that only basic ASCII characters are in the strings (0-127).
		for (i=0; i<user.length; i++) {
			if (user.charCodeAt(i)>127) {
				// alert("Ths username contains invalid characters.");
				return false;
			}
		}
		for (i=0; i<domain.length; i++) {
			if (domain.charCodeAt(i)>127) {
				// alert("Ths domain name contains invalid characters.");
				return false;
			}
		}
		// See if "user" is valid 
		if (user.match(userPat)==null) {
			// user is not valid
			// alert("The username doesn't seem to be valid.");
			return false;
		}
		var IPArray=domain.match(ipDomainPat);
		if (IPArray!=null) {
			for (var i=1;i<=4;i++) {
				if (IPArray[i]>255) {
					// alert("Destination IP address is invalid!");
					return false;
				}
			}
			return true;
		}
		var atomPat=new RegExp("^" + atom + "$");
		var domArr=domain.split(".");
		var len=domArr.length;
		for (i=0;i<len;i++) {
			if (domArr[i].search(atomPat)==-1) {
				// alert("The domain name does not seem to be valid.");
				return false;
			}
		}
		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;
		}
		if (len<2) {
			// alert("This address is missing a hostname!");
			return false;
		}
		// If we've gotten this far, everything's valid!
		return true;
	}