var minWidthBox = function (mw, mh, h) {
    $$('.'+h).each(function (el) {
        if (mw != 0) {
            el.style.width  = el.getWidth()  < mw ? mw+'px' : el.getWidth();
        }
        if (mh != 0) {
            el.style.height = el.getHeight() < mh ? mh+'px' : el.getHeight();
        }
    })
};
var minWidthBoxInit = function (mw, mh, h) {
    document.observe("dom:loaded", function () {
        minWidthBox(mw, mh, h)
    });
}