//JavaScript fuer die Anwendung Abfallwirtschaft
  
  var curElement;
  var x = 0;
  var y = 0;
  
  var calendar;
  
  function setXY(e){
    if(navigator.appName == "Microsoft Internet Explorer"){
      x = window.event.screenX;
      y = window.event.screenY;
    }
    else if(navigator.appName == "Netscape"){
      if(e){
        x = e.screenX;
        y = e.screenY;
      }
    }
  }

  document.onmousedown = setXY;
  
  function getDateCalendar(elementName){
    var url = "calendar.html";
    curElement = elementName;
    if(document.forms[0].elements[curElement].value != ""){
      var date  = document.forms[0].elements[curElement].value;
      var year  = date.substr(6,4);
      var month = date.substr(3,2);
      if(month.substr(0,1) == "0"){
        month = month.replace("0","");
      }
      url += "?month=" + month + "&year=" + year;
    }
 
    calendar = window.open(url,"DateDialog","width=148,height=138,top=" + y + ",left=" + x);
    calendar.focus();
  }
 
  function setDateCalendar(date){
    document.forms[0].elements[curElement].value = date;
  }