// preload
function preload(obj, path) {obj = new Image(); obj.src = path;}

// rollover
function m1_ovr(obj) {
    img_src = obj.src;
    re = /\.[(\w+)]*$/gi;
    img = img_src.replace(re,'');
    obj.src = img+'r.gif';
}
function m1_out(obj) {
    img_src = obj.src;
    re = /\.[(\w+)]*$/gi;
    img = img_src.replace(re,'');
    img = img.substring(0, img.length-1)
    obj.src = img+'.gif';
}