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;(function(window, undefined) {
/* Debounce and throttle functions taken from underscore.js */
window.debounce = function(func, wait, immediate) {
var timeout;
return function() {
var context = this, args = arguments;
var later = function() {
timeout = null;
if (!immediate) func.apply(context, args);
};
if (immediate && !timeout) func.apply(context, args);
clearTimeout(timeout);
timeout = setTimeout(later, wait);
};
};
window.throttle = function(func, wait) {
var context, args, timeout, throttling, more, result;
var whenDone = debounce(
function(){ more = throttling = false; }, wait);
return function() {
context = this; args = arguments;
var later = function() {
timeout = null;
if (more) func.apply(context, args);
whenDone();
};
if (!timeout) timeout = setTimeout(later, wait);
if (throttling) {
more = true;
} else {
result = func.apply(context, args);
}
whenDone();
throttling = true;
return result;
};
};
})(window);
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