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$(document).ready(function() {
	// get current URL path and assign 'active' class
	var pathname = window.location.pathname;

  //var attr = urlString.split('/');  If nessasary, can split the pathname into string, 
                                    //and get the correct item from the array and do the further processing work.



	$('.nav > li > a[href="'+pathname+'"]').parent().addClass('active');
})