function changeMediaStatus (elementid){		
	var el = $(elementid);
	if(el) {
		if (el.value == 'false')
			el.value = 'true';
		else
			el.value = 'false';
	}
}
function deleteImage(type) {
	$('delete_' + type).value = 'true';
	Effect.BlindUp(type + '_image_controls', {duration:0.25, queue:'end'});
	Effect.BlindDown(type + '_image_div', {duration:0.25, queue:'end'});
}