function changemovie(thisfilm) {

	var quickLowUrl=new Array();
	
	quickLoUrl[17]= 'http://www.mediathatmattersfest.org/mtm04/media/play/MobilizingMediaReformLowQT.mov';
	quickLoUrl[18]= 'http://www.mediathatmattersfest.org/mtm04/media/play/IndependentMediaTimeWarLowQT.mov';
	
	var quickHighUrl=new Array();
	
	quickHighUrl[17]= 'http://www.mediathatmattersfest.org/mtm04/media/play/MobilizingMediaReformHighQT.mov';
	quickHighUrl[18]= 'http://www.mediathatmattersfest.org/mtm04/media/play/IndependentMediaTimeWarHighQT.mov';	

	var realLoUrl=new Array();	
	realLoUrl[17]='rtsp://thatmatters.org/mediathatmattersfest/mtm04/MobilizingMediaReformLowRM.rm';
	realLoUrl[18]='rtsp://thatmatters.org/mediathatmattersfest/mtm04/IndependentMediaTimeWarLowRM.rm';

	var realHiUrl=new Array();	
	realHiUrl[17]='rtsp://thatmatters.org/mediathatmattersfest/mtm04/MobilizingMediaReformHighRM.rm';
	realHiUrl[18]='rtsp://thatmatters.org/mediathatmattersfest/mtm04/IndependentMediaTimeWarHighRM.rm';

alert(thisfilm);

	//assemble movie player html
   	var movieContent;

   
	 if (document.mtm.videoplayer[0].checked) {
		
		movieContent = 	'<object id="media" classid="CLSID:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA" width="320" height="260" center="true" src="' + realLoUrl[thisfilm] + '">' 
								+ '<param name="src" value="' + realLoUrl[thisfilm] + '" CONSOLE="_master">'
								+ '<param name="console" value="_master"><param name="center" value="true"><param name="maintainaspect" value="true"><param name="AutoStart" value="TRUE"><param name="controls" value="ImageWindow,ControlPanel">'
								+ '<embed name="media" console="_master" controls="ImageWindow,ControlPanel" type="audio/x-pn-realaudio-plugin" src="' + realLoUrl[thisfilm] +  '" width="320" height="260" autostart="true">' 
								+ '</embed><noembed>'
								+ '<a href="' + realLoUrl[thisfilm] + '">Play with RealPlayer</a>';
								+ '</noembed></object>';
								
	} else if  (document.mtm.videoplayer[1].checked) {
	
		movieContent = 	'<object id="media" classid="CLSID:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA" width="320" height="260" center="true" src="' + realHiUrl[thisfilm] + '">' 
								+ '<param name="src" value="' + realHiUrl[thisfilm] + '" CONSOLE="_master">'
								+ '<param name="console" value="_master"><param name="center" value="true"><param name="maintainaspect" value="true"><param name="AutoStart" value="TRUE"><param name="controls" value="ImageWindow,ControlPanel">'
								+ '<embed name="media" console="_master" controls="ImageWindow,ControlPanel" type="audio/x-pn-realaudio-plugin" src="' + realHiUrl[thisfilm] +  '" width="320" height="260" autostart="true">' 
								+ '</embed><noembed>'
								+ '<a href="' + realHiUrl[thisfilm] + '">Play with RealPlayer</a>';
								+ '</noembed></object>';
								
	} else if  (document.mtm.videoplayer[2].checked) {
	
		movieContent = 	'<EMBED SRC="' +  quickLoUrl[thisfilm] + '" WIDTH="320" HEIGHT="252" SCALE="tofit" AUTOPLAY="true" CONTROLLER="true" PLUGINSPAGE="http://www.apple.com/quicktime/download/"></EMBED>';
	
	} else if  (document.mtm.videoplayer[3].checked) {
	
		movieContent = 	'<EMBED SRC="' +  quickHiUrl[thisfilm] + '" WIDTH="320" HEIGHT="252" SCALE="tofit" AUTOPLAY="true" CONTROLLER="true" PLUGINSPAGE="http://www.apple.com/quicktime/download/"></EMBED>';
	
	} 

	// IE4+
  	if (document.all)
		playerbox.innerHTML=movieContent;
		
  	// NS 6 (supports new DOM)
  	else if (document.getElementById){

    pageRange = document.createRange();
    pageElement = document.getElementById("playerbox");
    pageRange.setStartBefore(pageElement);
    htmlFrag = pageRange.createContextualFragment(movieContent);
    
    while (pageElement.hasChildNodes())
    	pageElement.removeChild(pageElement.lastChild);
    	pageElement.appendChild(htmlFrag);
    }
    
}