function speakerOn(section_id){
	temp ='icon_speaker_' + section_id;
	tempImg = 'thumbnail' + section_id;
	document.getElementById(temp).src = "../images/icon_audio_on.gif";
	document.getElementById(tempImg).className = "photoImage_over";
}

function speakerOff(section_id){
	temp ='icon_speaker_' + section_id;
	tempImg = 'thumbnail' + section_id;
	document.getElementById(temp).src = "../images/icon_audio_off.gif";
	document.getElementById(tempImg).className = "photoImage_out";
}

function processPopup(audio_file_id,title){
openPop('../common/audio_popup.php?i='+audio_file_id+'&t='+title ,'audioPopUp','scrollbars=no,resizable=no,width=500,height=230');
}