/** Copyright 2013 Colm Delaney
 * Released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * To use this file, remove .txt extension, and place it within the appropriate project directory
 */
// Detect browser and add appropriate classes to calling element, typically 'html'
// Run on document.ready only; omit true if Modernizr is running
// Usage: $('html').add_browser_classes(true);
// Test function: alert('html classes: ' + jQuery('html').attr('class'));
// Add true arg if Modernizr/HTML5 Boilerplate isn't in use: function will then detect all IE lte 9
(function($) {
	$.fn.add_browser_classes = function(testielte9) {

		// Begin with the negation classes
		$(this).addClass('not-webkit not-firefox not-opera not-ie');

		if (/Chrome/.test(navigator.userAgent) && /Google Inc/.test(navigator.vendor)) {
			$(this).removeClass('not-webkit').addClass('webkit chrome');
		} else if (/Safari/.test(navigator.userAgent) && /Apple Computer/.test(navigator.vendor)) {
			$(this).removeClass('not-webkit').addClass('webkit safari');
		} else if (/Firefox/.test(navigator.userAgent)) {
			$(this).removeClass('not-firefox').addClass('firefox');
		} else if (window.opera && window.opera.buildNumber) {
			$(this).removeClass('not-opera').addClass('opera');
		} else if (Function('/*@cc_on return /^10/.test(@_jscript_version) @*/')()) {
			$(this).removeClass('not-ie').addClass('ie ie10');
		} else if (testielte9 == true) {
			var ie_lt_10=(function(){var c,a=3,d=document.createElement("div"),b=d.getElementsByTagName("i");while(d.innerHTML="<!--[if gt IE "+(++a)+"]><i></i><![endif]-->",b[0]){}return a>4?a:c}());
			if ((ie_lt_10 >= 4) && (ie_lt_10 <= 9)) {
				$(this).removeClass('not-ie');
				if (ie_lt_10 <= 6) {
					$(this).addClass('ie ie6 lt-ie10 lt-ie9 lt-ie8 lt-ie7');
				} else if (ie_lt_10 === 7) {
					$(this).addClass('ie ie7 lt-ie10 lt-ie9 lt-ie8');
				} else if (ie_lt_10 === 8) {
					$(this).addClass('ie ie8 lt-ie10 lt-ie9');
				} else if (ie_lt_10 === 9) {
					$(this).addClass('ie ie9 lt-ie10');
				}
			}
		}
		return this;
	};
})(jQuery);