if (document.images) {
 var img = new Array();

 img[10] = new Image();  img[10].src = "./img/top_specialissue.gif";
 img[11] = new Image();  img[11].src = "./img/top_specialissue_onmouse.gif";

 img[20] = new Image();  img[20].src = "./img/top_interviews.gif";
 img[21] = new Image();  img[21].src = "./img/top_interviews_onmouse.gif";

 img[30] = new Image();  img[30].src = "./img/top_articles.gif";
 img[31] = new Image();  img[31].src = "./img/top_articles_onmouse.gif";

 img[40] = new Image();  img[40].src = "./img/top_discreviews.gif";
 img[41] = new Image();  img[41].src = "./img/top_discreviews_onmouse.gif";

 img[50] = new Image();  img[50].src = "./img/top_corebbs.gif";
 img[51] = new Image();  img[51].src = "./img/top_corebbs_onmouse.gif";

 img[60] = new Image();  img[60].src = "./img/top_easybbs.gif";
 img[61] = new Image();  img[61].src = "./img/top_easybbs_onmouse.gif";

 img[70] = new Image();  img[70].src = "./img/top_links.gif";
 img[71] = new Image();  img[71].src = "./img/top_links_onmouse.gif";

}

function swapImg(name,num) {
 if (document.images) {
    document.images[name].src = img[num].src;
 }
}