var toggle = function(div_on, div_off, button_on, button_off) {
	
	var button_turn_on = document.getElementById(button_on);
	
	var button_turn_off = document.getElementById(button_off);
	
	var div_turn_on = document.getElementById(div_on);
	
	var div_turn_off = document.getElementById(div_off);
	
	div_turn_off.className = "video_photo_off";
	
	div_turn_on.className = "video_photo_on";
	
	button_turn_off.className = "media_toggle_off";
	
	button_turn_on.className = "media_toggle_on";
	
}