try to execute a callback for a while

try.js

var try = function (callback, terminal_case_callback, times, interval) {
	var number_of_times_tried = 0;
	times = times || 1000;
	interval = interval || 5;
	var _timeout_id = setInterval(function () {
		callback();
		if (terminal_case_callback() || number_of_times_tried > times) {
			clearInterval(_timeout_id);
		}
	}, interval)
}