var flatArray = function(array,index){
	var retVal = [];
	if (array[index] == undefined ){
    	return retVal;
	}else if (array[index].length || isNaN(array[index])){
    	retVal = flatArray(array[index],0);
	}else{
		retVal.push(array[index]);
    }
    retVal = retVal.concat(flatArray(array,index+1));
    return retVal;
}