barneycarroll

/*
jQuery's ':empty' selector only returns true if the element contains no text node, or whose text node consists exclusively of zero or more spaces and tabs. This ':notext' selector will return true for elements whose text nodes can also contain line breaks (any whitespace character) and HTML comments.
*/

$.expr[':'].notext = function detectNoText(x){
	return x.innerHTML && x.innerHTML.replace(/(<!--.*(?!-->))|\s+/g, '').length === 0
}

barneycarroll

<script>
	// add a class of 'loading' to the HTML, then remove it once the page has finished loading
	(function(c){
		c('scripted loading')
		window.onload = function(){setTimeout(function(){
			c(c().replace('loading',''))
		},30)}
	}(function(c){
		var h = document.lastChild
		return c ? h.className = c : h.className

barneycarroll

/* Return an object model of a URI query (search or hash) */

function uriQueryObj(str){
	if(!str) return false;
	var str = decodeURIComponent(str),
		str = /(^#)|(^$)/.test(str) ? str.substr(1) : str,
		arr = str.substr(1).split('&'),
		hash = {};
	while(arr.length && arr[0]){
		var bits = arr.pop().split('=')

barneycarroll

// Is the passed CSS property supported?
// eg. detectCSS('transition')
function detectCSS(prop){
	var 
		prop = prop.replace(/-(\w)/g,function(s,g){return g.toUpperCase()}), 
		pre  = ',Icab,Khtml,Moz,Ms,O,Webkit'.split(',');

	for (var i = 0; i < pre.length; ++i){
		if(i==1)
			prop = prop.slice(0,1).toUpperCase() + prop.slice(1);

barneycarroll

.background {
	background: rgb(247,247,247);
}

.fixText {
	text-shadow: 0 0 1px rgba(247,247,247,.5);
}

barneycarroll

// Stack window.onload functions
function addLoad(func){
	var old = window.onload;
	func instanceof Function
		&& (window.onload = 
			old instanceof Function
				? function(){func();old()}
				: func);
};

barneycarroll

// iframes delay page load: cut them out and in to reduce synchronous dependency
function asyncFrames(){
	$('iframe').each(function(){
		var 
			markup = $(this).clone(),
			guide = $('<b>').replaceAll(this);
		
		// addLoad: https://gist.github.com/1226302
		addLoad(function(){
			guide.replaceWith(markup)

barneycarroll

function writeStyle(rules){
	var head = document.getElementsByTagName('head')[0],
		el = this.el || document.createElement('style'),
		rules = rules || '';

	if(!this.el) 
		el.type = 'text/css';

	if(el.styleSheet){
		el.styleSheet.cssText = rules;

barneycarroll

// Return all attributes, optionally filtered by RegExp 
$.fn.attrs = function(expr){ 
	var 
		el = this[0], 
		$el = this, 
		attrArray = [];

	for(var i=0, attrs = el.attributes; i<attrs.length; ++i){ 
		var attrKey = [
			attrs.item(i).nodeName, 

barneycarroll

// Cross-browser outerHTML: return it, or if an argument was passed, replace the element. 
$.fn.outerHTML = function(arg){ 
	var $el = this;

	return arg 
		? $el.replaceWith(arg) 
		: $el.clone().wrap('<b>').parent().html(); 
};