var dir = "images/gallery_photos/"
var dirGallery = "images/gallery/"

function rollOver(imgName,over) {
        if (!document.images) {return};
        getImg = document.images[imgName];
        if (over) { getImg.src = dir + imgName + "_sm_roll.jpg" }
             else { getImg.src = dir + imgName + "_sm_off.jpg" };
    }
    
    function rollOverGallery(imgName,over) {
        if (!document.images) {return};
        getImg = document.images[imgName];
        if (over) { getImg.src = dirGallery + imgName + "_roll.jpg" }
             else { getImg.src = dirGallery + imgName + "_off.jpg" };
    }