function isNumeric(number)
{
	number = number + "";
	return ((number.length > 0) && isComposedOfChars("0123456789", number));
}

function isMoney(number)
{
	number = number + "";
	return ((number.length > 0) && isComposedOfChars("0123456789.", number));
}

function isAlphanumeric(alphaNumString)
{
	alphaNumString = alphaNumString + "";
	return ((alphaNumString.length > 0) &&
	isComposedOfChars("abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ", alphaNumString));
}
function isAlphanumericOrUnderscore(alphaNumString)
{
	alphaNumString = alphaNumString + "";
	return ((alphaNumString.length > 0) &&
	isComposedOfChars("abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_", alphaNumString));
}
function indexOfFirstNotIn(okayChars, inString)
{
	var i;
	for (i=0; i < inString.length; i++)
	{
		var charm = inString.charAt(i);
		if (okayChars.indexOf(charm) == -1)
		{
			return i;
		}
	}
	return -1;
}
function indexOfLastNotIn(okayChars, inString)
{
	var i;
	for (i = inString.length - 1; i >= 0; i--)
	{
		var charm=inString.charAt(i);
		if (okayChars.indexOf(charm) == -1)
		{
			return i;
		}
	}
	return -1;
}
function strip(string, sChar)
{
	if ((string == null) || (string == ""))
	{
		return "";
	}
	var startIndex = indexOfFirstNotIn(sChar, string);
	var endIndex = indexOfLastNotIn(sChar, string);
	if (startIndex == -1)
	{
		return "";
	}
	return string.substring(startIndex, endIndex + 1);
}
function isComposedOfChars(validChars, inString)
{
	return (indexOfFirstNotIn(validChars, inString) == -1);
}
var whitespace = " \t\n\r";
function replaceAll (s, fromStr, toStr)
{
	var new_s = s;
	for (i = 0; i < 100 && new_s.indexOf (fromStr) != -1; i++)
	{
		new_s = new_s.replace (fromStr, toStr);
	}
	return new_s;
}
function sqlSafe (s)
{
	var new_s = s;
	new_s = replaceAll (new_s, "'", "|");
	new_s = replaceAll (new_s, "|", "''");
	new_s = replaceAll (new_s, "\"", "|");
	new_s = replaceAll (new_s, "|", "''");
	return new_s;
}
function makeSafe (i)
{
	i.value = sqlSafe (i.value);
}
function isEmpty(s)
{
	return ((s == null) || (s.length == 0))
}
function isWhitespace(s)
{
	var i;
	if (isEmpty(s)) return false;
	for (i = 0; i < s.length; i++)
	{
		var c = s.charAt(i);
		if (whitespace.indexOf(c) == -1) return true;
	}
	return false;
}
function isZipcode(strZip)
{
	var s = new String(strZip);
	if (s.length != 5 && s.length != 10)
	return false;
	for (var i=0; i < s.length; i++)
	if ((s.charAt(i) < '0' || s.charAt(s) > '9') && s.charAt(i) != '-')
	return false;
	return true;
}
function isEmail (emailStr)
{
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum|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 +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null)
	{
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i<user.length; i++)
	{
		if (user.charCodeAt(i)>127)
		{
			return false;
		}
	}
	for (i=0; i<domain.length; i++)
	{
		if (domain.charCodeAt(i)>127)
		{
			return false;
		}
	}
	if (user.match(userPat)==null)
	{
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null)
	{
		for (var i=1;i<=4;i++)
		{
			if (IPArray[i]>255)
			{
				return false;
			}
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	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;
}
function isValidPasswordModel(passwordString)
{
	var password = strip(passwordString, " ");
	if (!isAlphanumeric(password))
	{
		return false;
	}
	if (password.length < 4)
	{
		return false;
	}
	return true;
}
function isPhoneNumber(Phone)
{
	Phone = Phone + "";
	return ((Phone.length > 9) && isComposedOfChars("0123456789()-", Phone));
}