Include all most of popular javascript libraries to the web browser.

jslibs.js

(function ($w, undefined) {
	function Namespace(namespace, parent, separator) {
		var parts = namespace.split(separator || '.'),
			    _parent = parent || window, 
			    currentPart = '';
		for (i = 0, ii = parts.length; i < ii; i++) {
			currentPart = parts[i];
			_parent[currentPart] = _parent[currentPart] || {};
			_parent = _parent[currentPart];
		}
		return _parent;
	}
	$w.namespace = Namespace;
	$w.iroel = Namespace('iroel');
	function loadScript(url) {
		var script = document.createElement('script');
		script.setAttribute('type', 'text/javascript');
		script.setAttribute('src', url);
		$w.document.body.appendChild(script);
		return script;
	}
	var jsLibs = [
		{ name: 'jQuery', friendlyName: 'jQuery', url: '//code.jquery.com/jquery.min.js' },
		{ name: '_', friendlyName: 'underscore', url: '//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.6.0/underscore-min.js' },
		{ name: 'angular', friendlyName: 'Angular', url: '//cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.15/angular.min.js' },
		{ name: 'ko', friendlyName: 'KnockOut', url: '//cdnjs.cloudflare.com/ajax/libs/knockout/3.1.0/knockout-min.js' },
		{ name: 'Backbone', friendlyName: 'Backbone', url: '//cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js' }
	];
	for (i = 0, ii = jsLibs.length; i < ii; i++) {
		if (typeof $w[jsLibs[i].name] === 'undefined') {
			loadScript(jsLibs[i].url);
			$w.console.log(jsLibs[i].friendlyName + ' has been included in your browser now.');
		}
	}
	$w.iroel.loadScript = loadScript;
	var filterLink = function (targetLink, dom) {
		var scope = (typeof dom == 'object' && dom) || $w.document.body, output = [], link;
		jQuery(scope).find('a[href*="' + targetLink + '"]').each(function(i, item) {
			link = jQuery(item).attr('href');
			$w.console.log(link);
			output.push(link);
		});
		if (typeof dom == 'boolean' && dom)
			return output;
	}
	$w.iroel.filterLink = filterLink;
	var GetObjectKeyByValue = function (object, value) {
	    for (var prop in object) {
	        if (object.hasOwnProperty(prop)) {
	             if (object[prop] === value)
	                 return prop;
	        }
	    }
	}
	iroel.getKeyByValue = GetObjectKeyByValue;
	String.prototype.isEmpty = function () {
		return !this || /^\s*^/.test(this);
	}
	var GetExtension = function (file) {
		return file.substring(file.lastIndexOf('.') + 1);
	}
	var mimeTypes = {
		ico: 'image/x-ico',
		png: 'image/png',
		gif: 'image/gif'
	};
	var injectShortcut = function (icon) {
		var iconType = "ico";
		//detecting icon type from parameter
		//base64 encoded image
		if (icon.substring(0, 4) == 'data') {
			iconType = GetObjectKeyByValue(mimeTypes, icon.split(':')[1].split(';')[0]);
		}
		//from url
		else {
			iconType = GetObjectKeyByValue(mimeTypes, icon.substring(icon.lastIndexOf('.') + 1));
		}
		var $allIcons = jQuery('head link[rel*="icon"]'), found = 0, testIcon = new RegExp(iconType);
		if ($allIcons.length > 0) {
			$allIcons.each(function (i, _icon) {
				$icon = jQuery(_icon);
				if (testIcon.test($icon.attr('type')) ||
				    GetExtension($icon.attr('href')) == iconType) {
					$icon.attr('href', icon);
					found++;
				}
			});
			console.log('Updating ' + found + ' icons');
		}
		/*if (found < 1 && $allIcons.length > 0) {
			$allIcons.each(function (i, _icon) {
				jQuery(_icon).attr('href', icon);
			});
			console.log('Update all icon');
		}*/
		if (found < 1 || $allIcons.length == 0) {
			jQuery('head').append('<link rel="shortcut icon" href="' + icon + '" />');
			console.log('Inserting new icon');
		}
	}
	$w.iroel.webIcon = injectShortcut;
})(window)