[рони]

tracerzzz,

function forIn(elem, obj) {
    for (var k in obj) typeof obj[k] == "string" ? elem[k] = obj[k] : forIn(elem[k], obj[k]);
    return elem
}

function add() {
    var image = {
        className: "alert",
        id: "qwe",
        innerHTML: "<img src='1.jpg' style='height:100%; width:100%;' >",
        style: {
            width: "999px",
            border: "5px solid red"
        }
    };
    var div = document.createElement("div");
    div = forIn(div, image);
    document.querySelector("#element").appendChild(div)
};