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function _setBrowser(){

	var userAgent = navigator.userAgent.toLowerCase();

	// Figure out what browser is being used
	jQuery.browser = {

		version: (userAgent.match( /.+(?:rv|it|ra|ie|me|ve)[\/: ]([\d.]+)/ ) || [])[1],

		chrome: /chrome/.test( userAgent ),
		safari: /webkit/.test( userAgent ) && !/chrome/.test( userAgent ),
		opera: /opera/.test( userAgent ),
		firefox: /firefox/.test( userAgent ),
		msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),

		mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent ),

		webkit: $.browser.webkit,
		gecko: /[^like]{4} gecko/.test( userAgent ),
		presto: /presto/.test( userAgent ),

		xoom: /xoom/.test( userAgent ),

		android: /android/.test( userAgent ),
		androidVersion: (userAgent.match( /.+(?:android)[\/: ]([\d.]+)/ ) || [0,0])[1],

		iphone: /iphone|ipod/.test( userAgent ),
		iphoneVersion: (userAgent.match( /.+(?:iphone\ os)[\/: ]([\d_]+)/ ) || [0,0])[1].toString().split('_').join('.'),

		ipad: /ipad/.test( userAgent ),
		ipadVersion: (userAgent.match( /.+(?:cpu\ os)[\/: ]([\d_]+)/ ) || [0,0])[1].toString().split('_').join('.'),

		blackberry: /blackberry/.test( userAgent ),

		winMobile: /Windows\ Phone/.test( userAgent ),
		winMobileVersion: (userAgent.match( /.+(?:windows\ phone\ os)[\/: ]([\d_]+)/ ) || [0,0])[1]
	};

	jQuery.browser.mobile   =   ($.browser.iphone || $.browser.ipad || $.browser.android || $.browser.blackberry );
};

// http://webknight-nz.blogspot.kr/2011/03/ie-9-detection-with-jquery.html
if(!$.support.htmlSerialize && !$.support.opacity){
	// IE6,7,8 code
} else {
	// IE9
}

var $ap = navigator.appVersion
var $ua = navigator.userAgent.toLowerCase ();
var browser = {
	ie : $ap.indexOf('MSIE') != -1,
	ie6 : $ap.indexOf('MSIE 6') != -1,
	ie7 : $ap.indexOf('MSIE 7') != -1,
	ie8 : $ap.indexOf('MSIE 8') != -1,
	opera : !!window.opera,
	safari : $ua.indexOf('safari') != -1,
	safari3 : $ua.indexOf('applewebkit/5') != -1,
	mac : $ua.indexOf('mac') != -1,
	chrome : $ua.indexOf('chrome') != -1,
	firefox : $ua.indexOf('firefox') != -1,
	ipod : $ua.match(/ipod/),
	ipad : $ua.match(/ipad/), 
	iphone : $ua.match(/iphone/)
}
var $ag_id = (browser.ipod||browser.ipad||browser.iphone);