loaded = false;
function init() {
	if (document.images) {
		//preload images
		myimages = new Array();
		loaded = new Array();
		index = new Array();
		for (i=0; i<names.length; i++) {
			var name = names[i];
			var active = actives[i];
			var passive = passives[i];
			index[name] = i;
			if (loaded[active] != 1) {
				myimages[active] = new Image();
				myimages[active].src = pre + active + post;
				loaded[active] = 1;
//				alert("loaded active: "+myimages[active].src);
			}
			if (loaded[passive] != 1) {
				myimages[passive] = new Image();
				myimages[passive].src = pre + passive + post;
				loaded[passive] = 1;
//				alert("loaded passive: "+myimages[passive].src);
			}
		}
		loaded = 1;
	}
}


function over(name) {
	if (loaded) {
		active = actives[index[name]];
		document.images[name].src = myimages[active].src;
	}
}

function out(name) {
	if (loaded) {
		passive = passives[index[name]];
		document.images[name].src = myimages[passive].src;
	}
}