function isAlien(a) {
   return isObject(a) && typeof a.constructor != 'function';
}
function isArray(a) {
    return isObject(a) && a.constructor == Array;
}
function isBoolean(a) {
    return typeof a == 'boolean';
}
function isEmpty(o) {
    var i, v;
    if (isObject(o)) {
        for (i in o) {
            v = o[i];
            if (isUndefined(v) && isFunction(v)) {
                return false;
            }
        }
    }
    return true;
}
function isFunction(a) {
    return typeof a == 'function';
}
function isNull(a) {
    return typeof a == 'object' && !a;
}
function isNumber(a) {
	return typeof a == 'number' && isFinite(a);
}
function isObject(a) {
    return (a && typeof a == 'object') || isFunction(a);
}
function isString(a) {
    return typeof a == 'string';
}
function isUndefined(a) {
    return typeof a == 'undefined';
} 



function valueNaN(i) {
	return !(parseInt(i) > -1);
}





function validEmailFormat(txtValue) {
	var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
	if (! txtValue.match(re)) {
		return (false);
	}
	return (true);
}



function trim(value){
	if(value.length < 1){
		return"";
	}
	value = rTrim(value);
	value = lTrim(value);
	if(value==""){
		return "";
	} else {
		return value;
	}
} //End Function

function rTrim(value){
	var w_space = String.fromCharCode(32);
	var v_length = value.length;
	var strTemp = "";
	if(v_length < 0){
		return "";
	}
	var iTemp = v_length -1;
	
	while(iTemp > -1){
		if(value.charAt(iTemp) == w_space){
		} else {
			strTemp = value.substring(0,iTemp +1);
			break;
		}
		iTemp = iTemp-1;	
	} //End While
	return strTemp;

} //End Function

function lTrim(value){
	var w_space = String.fromCharCode(32);
	if(v_length < 1){
		return"";
	}
	var v_length = value.length;
	var strTemp = "";
	
	var iTemp = 0;
	
	while(iTemp < v_length){
		if(value.charAt(iTemp) == w_space){
		} else {
			strTemp = value.substring(iTemp,v_length);
			break;
		}
		iTemp = iTemp + 1;
	} //End While
	return strTemp;
} //End Function