function GetRandom( min, max ) {
  if( min > max ) {
    return( -1 );
  }
  if( min == max ) {
    return( min );
  }
 
        return( min + parseInt( Math.random() * ( max-min+1 ) ) );
}

function SetStartImage(element) 
{
    
  var iZahl = GetRandom(1,4); 
  var cssClass = ""; 
  
  switch(iZahl) 
  {
  case 1:
    cssClass = "div_start_image_a";
    break;
  case 2: 
    cssClass = "div_start_image_b";
    break;
  case 3: 
    cssClass = "div_start_image_c";
    break;
  case 4:
    cssClass = "div_start_image_d";
    break;
  }

  var elDiv = document.getElementById(element); 
  if (elDiv != null) 
    document.getElementById(element).setAttribute("class",cssClass); 
  
}

Function.prototype.Timer = function (interval, calls, onend) {
  var count = 0;
  var payloadFunction = this;
  var startTime = new Date();
  var callbackFunction = function () {
    return payloadFunction(startTime, count);
  };
  var endFunction = function () {
    if (onend) {
      onend(startTime, count, calls);
    }
  };
  var timerFunction =  function () {
    count++;
    if (count < calls && callbackFunction() != false) {
      window.setTimeout(timerFunction, interval);
    } else {
      endFunction();
    }
  };
  timerFunction();
};


        function checkBrowserName(name){   
           var agent = navigator.userAgent.toLowerCase();   
           if (agent.indexOf(name.toLowerCase())>-1) {   
             return true;   
           }   
           return false;   
        }

        function refreshIFrameHeight(iframe) {
            var height = null; 
        
            /*if(checkBrowserName('MSIE')){
                // IE 
                height = document.frames[iframe.id].document.body.scrollHeight;
                height += 20; 
            }

            if (checkBrowserName('opera')) {
                height = document.getElementById(iframe.id).contentDocument.height;     
            }

          if (checkBrowserName('safari')) {
              height = document.getElementById(iframe.id).contentDocument.height;     
            }

          if (checkBrowserName('firefox')) {
              height = document.getElementById(iframe.id).contentDocument.height;
              height += 25;
          }  

          iframe.style.height = height + "px"; */
          
          window.scrollTo(0,0);

        }






            initToggleContent = function () {
                $("[tredition_content]").hide();
                $("[tredition_header]").css("cursor", "pointer");
                $("[tredition_header]").click(

                    function () {
                        var contentId = $(this).attr("tredition_content_id");

                        $("#" + contentId).slideToggle();


                    }

                );
            };

            $(document).ready(
                function () {

                    initToggleContent();


                }
            );