typeof fn[0] == "undefined" && /function/i.test( fn + "" ); 
fn.constructor != Array && /function/i.test( fn + "" ); 
	isFunction: function( fn ) {		return !!fn && typeof fn != "string" && !fn.nodeName && 			typeof fn[0] == "undefined" && /function/i.test( fn + "" );	},
6056	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6056/7d0a84193f539d85267d1458aba35a42d7dbd03b/jquery.js/buggy/src/jquery/jquery.js