minimal sequent conditional scripts loader

mini_conditional_loader.js

function(b) {

    // extra functions, test, variables here
    // it's a closure !

    function c() { // k=[]会被滤掉, onload后再次仔细c(), e.shift();
        if (d = e.shift()) a = b.body.appendChild(b.createElement("SCRIPT")), a.onload = c, a.src = d
    }
    var K = [],
        e = K.concat(

        Object.create ? K : 'es5-sham.js',
        K.forEach ? K : 'es5-shim.js',
        Function.bind ? K : 'bindOnlyShim.js',
        window.JSON ? K : 'json2.js', [ // library list
        'lib.js',
            'main.js']

        ),
        a, d;
    c()
}(document);