var mainContainer_ID = 'pageWrapper';
var overlayBox_ID = 'overlaybox';
var videoBox_ID = 'videobox';



  function prepare_quiz( ) {
   if( document.getElementById('show_video') ){
        document.getElementById('show_video').onclick = function (){
          create_video (this); return false;
      }
    }
  }


  function create_video( me ) {
    
    if( document.getElementById(overlayBox_ID) ){
      document.getElementById(overlayBox_ID).style.display = 'block';
    }
    else {
      var tmp_overlay = document.createElement('div');
      tmp_overlay.id = overlayBox_ID;
      document.getElementsByTagName('body')[0].appendChild(tmp_overlay);
      document.getElementById(overlayBox_ID).onclick = function (){
        close_video (this); return false;
      }
    }
    
    var tmp_str = new String();
      tmp_str +='<object type="application/x-shockwave-flash" data="../x_media/enretec_video.swf" width="480" height="346" id="Flash_02">';
      //tmp_str +='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="480" height="350" id="Flash_02">;
      tmp_str +='<param name="play" value="true" />';
      tmp_str +='<param name="loop" value="false" />';
      tmp_str +='<param name="movie" value="../x_media/enretec_video.swf" />';
      tmp_str +='<param name="quality" value="high" />';
      tmp_str +='<param name="bgcolor" value="#c4e6e5" />';
      tmp_str +='<param name="wmode" value="transparent" />';
      tmp_str +='</object>';
    var tmp_video = document.createElement('div');
    tmp_video.id = videoBox_ID;
    tmp_video.innerHTML = tmp_str;
    document.getElementsByTagName('body')[0].appendChild(tmp_video);
    pos_video ();
  }

  function pos_video (){
    var win_width, win_height, win_scrollLeft, win_scrollTop;
    var e_Layerbox, e_zoombox
    
    var arrayPageSize = getPageSize();
  	var arrayPageScroll = getPageScroll();
    
    if( document.getElementById(overlayBox_ID)){
      obj_overlayBox = document.getElementById(overlayBox_ID);
      obj_overlayBox.style.height = (arrayPageSize[1] + 'px');
    }
    
  	if( document.getElementById(videoBox_ID)){
      obj_videoBox = document.getElementById(videoBox_ID);
    	var obj_videoBoxTop = parseInt( arrayPageScroll[1] + ((arrayPageSize[3] - obj_videoBox.offsetHeight) / 2) );
    	var obj_videoBoxLeft = parseInt((arrayPageSize[0] - obj_videoBox.offsetWidth ) / 2);
    	obj_videoBox.style.top = (obj_videoBoxTop < 0) ? "0px" : obj_videoBoxTop + "px";
    	obj_videoBox.style.left = (obj_videoBoxLeft < 0) ? "0px" : obj_videoBoxLeft + "px";
    }

  }

  function close_video(){
    if( document.getElementById(overlayBox_ID) ){
      document.getElementById(overlayBox_ID).style.display = 'none';
    }
    if( document.getElementById(videoBox_ID) ){
      var parent = document.getElementById(videoBox_ID).parentNode;
      parent.removeChild(document.getElementById(videoBox_ID));
    }
    //document.getElementById(overlayBox_ID).style.display = "none";
    //document.getElementById(videoBox_ID).style.display = "none";
  }

addLoadEvent ( prepare_quiz )