function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");

    }
  }
}

function linkInit(imagename, linkpath) {
    if ( ! document.images ) {
        return false;
    }
    var the_path = document.location.pathname;
    if  ( the_path.indexOf(linkpath) == 0 ) {
        setCurrentRollover(imagename, linkpath)
    }
}

function setCurrentRollover(imagename, linkpath) {
    changeImages(imagename, imagename + 'on');
    
    for ( i = 0; i < document.links.length; i++ ) {
        var ln     = document.links[i];
        
        var lnpath = ln.pathname;
        if ( lnpath.substring(0,1) != '/' ) {
            lnpath = '/' + lnpath;
        }
        
        if ( linkpath == lnpath ) {
            ln.onmouseover  = null;
            ln.onmouseout   = null;
            ln.onclick      = function() { return false; }
        }
    }
}