imag = new Array();

imag[0] = "images/menuAbout-on.gif";
imag[1] = "images/menuAbout-off.gif";
imag[2] = "images/menuNews-on.gif";
imag[3] = "images/menuNews-off.gif";
imag[4] = "images/menuCatalog-on.gif";
imag[5] = "images/menuCatalog-off.gif";
imag[6] = "images/menuOpt-on.gif";
imag[7] = "images/menuOpt-off.gif";
imag[8] = "images/menuNet-on.gif";
imag[9] = "images/menuNet-off.gif";
imag[10] = "images/menuManufacture-on.gif";
imag[11] = "images/menuManufacture-off.gif";
imag[12] = "images/menuArticles-on.gif";
imag[13] = "images/menuArticles-off.gif";
imag[14] = "images/menuPhotos-on.gif";
imag[15] = "images/menuPhotos-off.gif";
imag[16] = "images/menuForum-on.gif";
imag[17] = "images/menuForum-off.gif";
imag[18] = "images/menuHome-on.gif";
imag[19] = "images/menuHome-off.gif";

function swtch(num,imgname){
     imgname.src = im[num].src
}

im = new Array()

for (var i = 0; i < imag.length; i++){
       im[i] = new Image()
       im[i].src = imag[i]
}