function expand(elem) {
        var imH = elem.offsetHeight;
        var imW = elem.offsetWidth;
        var posLeft = elem.offsetLeft;
        var posTop = elem.offsetTop;
            posLeft--;
            posTop--;
            imH++;
            imW++;
            if(imW <= 75) {
                elem.style.left = posLeft;
                elem.style.top = posTop;
                      elem.style.width = imW + 1;
                      elem.style.height = imH + 1;
                  timerID = setTimeout(function(){expand(elem)}, 30);

            }
    }
    function revert(elem) {
        var imW = elem.offsetWidth;
        var imH = elem.offsetHeight;
        var posLeft = elem.offsetLeft;
        var posTop = elem.offsetTop;
              posLeft++;
              posTop++;
              imW--;
              imH--;
            elem.style.left = posLeft;
            elem.style.top = posTop;
                  elem.style.width = imW - 1;
                  elem.style.height = imH - 1;
                if(imW <= 65) {
                    return false
                }
                 timerID = setTimeout(function(){revert(elem)}, 30);
    }