function create_player(id, file, height, width)
{
  if(!height) height = '400';
  if(!width) width = '728';
  
  var so = new SWFObject('/flash/mediaplayer.swf',id + '_mv',width,height,'8');
  so.addParam('allowscriptaccess','always');
  so.addParam('allowfullscreen','false');
  so.addVariable('width', width);
  so.addVariable('height', height);
  so.addVariable('file',file);
  so.addVariable('javascriptid',id + '_mv');
  so.addVariable('enablejs','true');
  so.addVariable('overstretch','fit');
  so.addVariable('usefullscreen','false');
  so.write(id + '_demo');
}

function show_video(elt)
{
  Effect.BlindUp('vid_nav');
  setTimeout("Effect.BlindDown('" + elt + "_demo')", 1000);
  setTimeout("sendEvent('" + elt + "_mv','playitem',0)", 3000);
}

function hide_video(elt)
{
  Effect.BlindUp(elt + '_demo');
  setTimeout("Effect.BlindDown('vid_nav')", 1000);
  sendEvent(elt + '_mv','stop')
}

function change_video(elt1, elt2)
{
  sendEvent(elt1 + '_mv','stop')
  Effect.BlindUp(elt1 + '_demo');
  setTimeout("Effect.BlindDown('" + elt2 + "_demo')", 1000);
  setTimeout("sendEvent('" + elt2 + "_mv','playitem','1')", 2000);
}

function sendEvent(swf,typ,prm) { 
  thisMovie(swf).sendEvent(typ,prm);
}

function thisMovie(swf) {
  if(navigator.appName.indexOf("Microsoft") != -1) {
    return window[swf];
  } else {
    return document[swf];
  }
}