function ltrim(in_var){
	var ptrn = /\s*((\S+\s*)*)/;
	return in_var.replace(ptrn, "$1");
}
function rtrim(in_var){
	var ptrn = /((\s*\S+)*)\s*/;
	return in_var.replace(ptrn, "$1");
}
function trim(in_var){
	return ltrim(rtrim(in_var));
}