Google Images file drop code

gistfile1.js

L(w, "drop", function (a) {
    a = a || window.event;
    a.preventDefault && a.preventDefault();
    if (a.dataTransfer.files.length) try {
        var b = new FileReader;
        b.onload = function (a) {
            a = a || window.event;
            if (b.readyState == b.DONE && a.target.result) {
                for (var c = document.getElementById("dragi"), d = a.target.result, a = [], n = 0, m = 0; m < d.length; m++) {
                    for (var l = d.charCodeAt(m); 255 < l;) a[n++] = l & 255, l >>= 8;
                    a[n++] = l
                }
                d = [];
                for (n = 0; n < a.length; n += 3) {
                    var J = a[n],
                        B = (m = n + 1 < a.length) ? a[n + 1] : 0,
                        C = (l = n + 2 < a.length) ? a[n + 2] : 0,
                        qa = J >> 2,
                        J = (J & 3) << 4 | B >> 4,
                        B = (B & 15) << 2 | C >> 6,
                        C = C & 63;
                    l || (C = 64, m || (B = 64));
                    d.push("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=" [qa], "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=" [J], "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=" [B], "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=" [C])
                }
                c.value = d.join("");
                v.click()
            } else Y()
        };
        document.getElementById("dragfn").value = a.dataTransfer.files[0].name;
        b.readAsBinaryString(a.dataTransfer.files[0])
    } catch (c) {
        return f
    } else if (a.dataTransfer.types.indexOf && -1 != a.dataTransfer.types.indexOf("text/html") || a.dataTransfer.types.contains && -1 != a.dataTransfer.types.contains("text/html")) if ((a = k("div", a.dataTransfer.getData("text/html")).getElementsByTagName("img")) && a[0] && a[0].src) if (0 == a[0].src.indexOf("data:")) if (a = oa(a[0].src)) document.getElementById("dragi").value = a, v.click();
    else return f;
    else m.value = a[0].src, v.click();
    else return f;
    else if (a.dataTransfer.types.indexOf && -1 != a.dataTransfer.types.indexOf("text/uri-list")) m.value = a.dataTransfer.getData("text/uri-list"), v.click();
    else return f;
    z = !0;
    return f
});