var darkImages = new Array();
darkImages["studio"] = new Image(81,81);
darkImages["studio"].src = "images/menu/interactiveIcons/studio09_dark.jpg";
darkImages["environment"] = new Image(81,81);
darkImages["environment"].src = "images/menu/interactiveIcons/environment09_dark.jpg";

var lightImages = new Array();
lightImages["studio"] = new Image(81,81);
lightImages["studio"].src = "images/menu/interactiveIcons/studio09_light.jpg";
lightImages["environment"] = new Image(81,81);
lightImages["environment"].src = "images/menu/interactiveIcons/environment09_light.jpg";

function showLight(name){
	var id = "intMenu_"+name;
	document.getElementById(id).src = lightImages[name].src;
}
function showDark(name){
	var id = "intMenu_"+name;
	document.getElementById(id).src = darkImages[name].src;
}