function changeimage(towhat,imgDocID){
	if (document.images[imgDocID]){
		document.images[imgDocID].src = myimages[towhat].src;
	}
}

var myimages=new Array()

function preloadimages(){
for (i=0;i<preloadimages.arguments.length;i++){
myimages[i]=new Image()
myimages[i].src="images/" + preloadimages.arguments[i]
}
}


preloadimages("aboutoff.gif", "abouton.gif", "emailoff.gif", "emailon.gif", "gamesoff.gif", "gameson.gif", "softoff.gif", "softon.gif")