Javascript-Div und ein Resizable

function resize_div (element_id, timeout, size_x, size_y, start_size_x, start_size_y) 
{
     var element = document.getElementById (element_id);
         if (!proc) 
              {
                 if (start_size_x)
                      element.style.width = start_size_x;
             if (start_size_y)
                      element.style.height = start_size_y;
                 if (!element.style.width ¦¦ !element.style.height)
                       if (window.getComputedStyle)
                  {
  var style = document.defaultView.getComputedStyle (element, null);
          element.style.width = style.getPropertyValue ('width');
          element.style.height = style.getPropertyValue ('height');
        }
        else if (element.currentStyle)
           {
             element.style.width = element.currentStyle.width;
     element.style.height = element.currentStyle.height;
           }
        else 
          {
            element.style.width = '0px';
            element.style.height = '0px';
  }
    start_size_x = parseFloat (element.style.width);
    start_size_y = parseFloat (element.style.height);


    proc = window.setInterval ('resize_div (\'' + element_id + '\', ' + timeout + ', ' + size_x + ', ' + size_y + ', ' + start_size_x + ', ' + start_size_y + ')');
    return;
    }


  element.style.width.match (/[0-9.]+(.+)/);
  var ex = RegExp.$1 ¦¦ 'px';
  element.style.height.match (/[0-9.]+(.+)/);
  var ey = RegExp.$1 ¦¦ 'px';
  var delta_x, delta_y;
     if (start_size_x != size_x) 
      {
          delta_x = (ex == 'px' ¦¦ ex == 'pt') ? 5 : 0.05;
      var steps = (start_size_x < size_x ? size_x - start_size_x : start_size_x - size_x) / delta_x;
      delta_y = (start_size_y < size_y ? size_y - start_size_y : start_size_y - size_y) / steps;
      }
     else 
      {
          delta_x = 0;
          delta_y = (ey == 'px' ¦¦ ey == 'pt') ? 15 : 0.15;
      }


    if (parseFloat (element.style.width) != size_x ¦¦parseFloat (element.style.height) != size_y)
          {
            var width = parseFloat (element.style.width) + (start_size_x < size_x ? delta_x : -delta_x);
            width = (width > size_x ? width - size_x : size_x - width) < delta_x ? size_x : width;
            element.style.width = width + ex;
            var height = parseFloat (element.style.height) + (start_size_y < size_y ? delta_y : -delta_y);
            height = (height > size_y ? height - size_y : size_y - height) < delta_y ? size_y : height;
            element.style.height = height + ey;
      }
    else 
     {
            window.clearInterval (proc);
            proc = null;
     }
}


var proc;
function init_div_size (element_id, width, height) 
  {
       var element = document.getElementById (element_id);
         if (element)
        {
                element.style.width = width;
                element.style.height = height;
        }
}
</script>