function LTrim(str) {

	var whitespace = new String(" \t\n\r");

	var s = new String(str);

	if (whitespace.indexOf(s.charAt(0)) != -1) {

		var j=0, i = s.length; 

		while (j < i && whitespace.indexOf(s.charAt(j)) != -1) 

		j++; 

		s = s.substring(j, i); } 

	return s; } 

function RTrim(str) {

	var whitespace = new String(" \t\n\r"); 

	var s = new String(str); 

	if (whitespace.indexOf(s.charAt(s.length-1)) != -1){ 

		var i = s.length - 1; // Get length of string 

		while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)

			i--; 

			s = s.substring(0, i+1); }

	return s; }

function Trim(str) { return RTrim(LTrim(str)); }

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) {

		alert("Email address seems incorrect (check @ and .'s)");

		return false;

	}

	var user=matchArray[1];

	var domain=matchArray[2];

	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;

	   }

	}

	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) {

				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;

	}

	return true;

}



//###############################################################

function IsValidTime(timeStr) {

	var timePat = /^(\d{1,2}):(\d{2})(:(\d{2}))?(\s?(AM|am|PM|pm))?$/;

	

	var matchArray = timeStr.match(timePat);

	if (matchArray == null) {

		alert("Time is not in a valid format.");

		return false;

	}

	else

		return true;

	/*hour = matchArray[1];

	minute = matchArray[2];

	second = matchArray[4];

	ampm = matchArray[6];

	

	if (second=="") { second = null; }

	if (ampm=="") { ampm = null }

	

	if (hour < 0  || hour > 23) {

		//alert("Hour must be between 1 and 12. (or 0 and 23 for military time)");

		//return false;

	}

	if (hour <= 12 && ampm == null) {

		//if (confirm("Please indicate which time format you are using.  OK = Standard Time, CANCEL = Military Time")) {

		//	alert("You must specify AM or PM.");

		//	return false;

	   	//}

	}

	if  (hour > 12 && ampm != null) {

		//alert("You can't specify AM or PM for military time.");

		//return false;

	}

	if (minute<0 || minute > 59) {

		//alert ("Minute must be between 0 and 59.");

		//return false;

	}

	if (second != null && (second < 0 || second > 59)) {

		//alert ("Second must be between 0 and 59.");

		//return false;

	}

	return false;*/

}

//<form name=timeform onSubmit="return IsValidTime(document.timeform.time.value);">