Calendar.prototype.showAtElement = function(element, operation) {
  function setup(e) {
    if (e.x < 0) {
      e.x = 0;
    }
    if (e.y < 0) {
      e.y = 0;
    }

    var boundCalcDiv = document.createElement("div");
    var boundCalcDivStyle = boundCalcDiv.style;
    boundCalcDivStyle.position = "absolute";
    boundCalcDivStyle.right = boundCalcDivStyle.bottom = boundCalcDivStyle.width = boundCalcDivStyle.height = "0px";
    document.body.appendChild(boundCalcDiv);
    var pos = Calendar.getAbsolutePos(boundCalcDiv);
    document.body.removeChild(boundCalcDiv);
    if (Calendar.is_ie) {
      pos.y += document.body.scrollTop;
      pos.x += document.body.scrollLeft;
    } else {
      pos.y += window.scrollY;
      pos.x += window.scrollX;
    }

    var offset = e.x + e.width - pos.x;
    if (offset > 0) {
      e.x -= offset;
    }

    offset = e.y + e.height - pos.y;
    if (offset > 0) {
      e.y -= offset;
    }
  }

  var cal = this;
  var e = Calendar.getAbsolutePos(element);
  if (!operation || typeof operation != "string") {
    this.showAt(e.x, e.y + element.offsetHeight);
    return true;
  }

  this.element.style.display = "block";

  Calendar.continuation_for_the_fucking_khtml_browser = function() {
    var x = cal.element.offsetWidth;
    var y = cal.element.offsetHeight;

    cal.element.style.display = "none";
    var type = operation.substr(0, 1);

    var op = "l";
    if (operation.length > 1) {
      op = operation.substr(1, 1);
    }
    switch(type) {
      case "T":
        e.y -= y;
        break;
      case "B":
        e.y += c.offsetHeight;
        break;
      case "C":
        e.y += (c.offsetHeight - y) / 2;
        break;
      case "t":
        e.y += c.offsetHeight - y;
        break;
      case "b":
        break;
    }
    switch(op) {
      case "L":
        e.x -= x;
        break;
      case "R":
        e.x += element.offsetWidth;
        break;
      case "C":
        e.x += (element.offsetWidth - x) / 2;
        break;
      case "l":
        e.x += element.offsetWidth - x;
        break;
      case "r":
        break;
    }
    e.width = x;
    e.height = y + 40;

    cal.monthsCombo.style.display = "none";
    setup(e);
    cal.showAt(e.x, e.y);
  };
  if (Calendar.is_khtml) {
    setTimeout("Calendar.continuation_for_the_fucking_khtml_browser()", 10);
  } else {
    Calendar.continuation_for_the_fucking_khtml_browser();
  }
};