if(document.images){  

	logo1 = new Image(120,121); logo1.src = "gifs/riok.gif";
	logo2 = new Image(120,121); logo2.src = "gifs/riog.gif";

	}
function flash(imageName,imageFile) {
	if(!document.images) return;
	eval('document.images[imageName].src = '+imageFile+'.src');
}