function validateInteger( strValue ) {
/************************************************
DESCRIPTION: Validates that a string contains only
valid integer number.

PARAMETERS:
strValue - String to be tested for validity

RETURNS:
True if valid, otherwise false.
**************************************************/
	var objRegExp = /(^-?\d\d*$)/;
	
	//check for integer characters
	return objRegExp.test(strValue);
}


function validateEmail( strValue) {
/************************************************
DESCRIPTION: Validates that a string contains a
valid email pattern.

PARAMETERS:
strValue - String to be tested for validity

RETURNS:
True if valid, otherwise false.

REMARKS: Accounts for email with country appended
does not validate that email contains valid URL
type (.com, .gov, etc.) or valid country suffix.
*************************************************/
	var objRegExp =/(^[a-z]([a-z_\.]*)@([a-z_\.]*)([.][a-z]{3})$)|(^[a-z]([a-z_\.]*)@([a-z_\.]*)(\.[a-z]{3})(\.[a-z]{2})*$)/i;
	
	//check for valid email
	return objRegExp.test(strValue);
}

function validateNotEmpty( strValue ) {
/************************************************
DESCRIPTION: Validates that a string is not all
blank (whitespace) characters.

PARAMETERS:
strValue - String to be tested for validity

RETURNS:
True if valid, otherwise false.
*************************************************/
	var strTemp = strValue;
	strTemp = trimAll(strTemp);
	if(strTemp.length > 0) return true;
	return false;
}

function rightTrim( strValue ) {
/************************************************
DESCRIPTION: Trims trailing whitespace chars.

PARAMETERS:
strValue - String to be trimmed.

RETURNS:
Source string with right whitespaces removed.
*************************************************/
	var objRegExp = /^([\w\W]*)(\b\s*)$/;
	
	if(objRegExp.test(strValue)) {
	//remove trailing a whitespace characters
	strValue = strValue.replace(objRegExp, '$1');
	}
	return strValue;
}

function leftTrim( strValue ) {
/************************************************
DESCRIPTION: Trims leading whitespace chars.

PARAMETERS:
strValue - String to be trimmed

RETURNS:
Source string with left whitespaces removed.
*************************************************/
	var objRegExp = /^(\s*)(\b[\w\W]*)$/;
	
	if(objRegExp.test(strValue)) {
	//remove leading a whitespace characters
	strValue = strValue.replace(objRegExp, '$2');
	}
	return strValue;
}

function trimAll( strValue ) {
/************************************************
DESCRIPTION: Removes leading and trailing spaces.

PARAMETERS: Source string from which spaces will
be removed;

RETURNS: Source string with whitespaces removed.
*************************************************/
	var objRegExp = /^(\s*)$/;
	
	//check for all spaces
	if(objRegExp.test(strValue)) {
	strValue = strValue.replace(objRegExp, '');
	if( strValue.length == 0)
	return strValue;
	}
	
	//check for leading & trailing spaces
	objRegExp = /^(\s*)([\W\w]*)(\b\s*$)/;
	if(objRegExp.test(strValue)) {
	//remove leading and trailing whitespace characters
	strValue = strValue.replace(objRegExp, '$2');
	}
	return strValue;
}