<script src="aaa"></script> <script type="aaasdf" id="asdf"> function aaa() { } </script> <script> var scripts = []; $('script[src!=""]').each(function () { scripts.push($(this).attr('src')); }); function load(x, y) { if (x > scripts.length) { y(); return; } var script = scripts[x]; loadScript(script, load(x++, y)); } load(0, callback); var jsArray = {}; function loadScript(a, b) { if (jsArray[a]) b && b(); else { jsArray[a] = !0; var c = document.getElementsByTagName("body")[0], d = document.createElement("script"); d.type = "text/javascript", d.src = a, d.onload = b, c.appendChild(d); } } </script>