function validateID(id){
	//id shall be a number, and not zero-length
	if(isNaN(id) || id.length===0){
		return false;
	}
	return true;
}
/* returns true if validation is successful, false otherwise */
returns true if validation is successful, false otherwise
returns true if validation is successful false otherwise
function validateID(id){
	if(isNaN(id) || id.length===0){
		return false;
	}
	return true;
}
function validateID ( id ) { if ( isNaN ( id ) || id . length === 0 ) { return false ; } return true ; }
returns true if validation is successful, false otherwise
returns true if validation is successful false otherwise
//id shall be a number, and not zero-length
