var _js = ['http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js', 'main'];
for (var _i in _js) {
 url = (_js[_i].indexOf('.js') == -1) ? '/js/'+_js[_i]+'.js' : _js[_i];
 document.write('<script type="text/javascript" src="'+url+'"><\/script>');                   
}