$(document).ready(function() {
var fileTypes = ["pdf", "PDF", "doc", "DOC", "xls", "XLS", "docx", "DOCX", "xlsx", "XLSX"];

// then, loop over the object

// using jQuery's $.each()
$.each(fileTypes, function(index, extension) {
						   
		$('a[href$="' + extension + '" ]').addClass("icon " + extension),
		$('a[href$="' + extension + '" ]').parent().parent().addClass("line-height");

    
});

});