var PreloadFlag = false;

 function changeImages( src) {
  if ((document.images)&&(PreloadFlag)) {
   var im = document.images["__pr_" + src];
   if (im.light=="off") {
    im.src = __pr_img[src + "_on"].src;
    im.light = "on";
   }
   else {
    im.src = __pr_img[src].src;
    im.light = "off";
   }
  }
 }

 var __pr_img_root = "http://tosay.ru/design/menu/";
 function ShowImage(title, href, name) {
 document.write('<a href=' + href + ' title="' + title + '"\
 onmouseover="changeImages(\'' + name + '\');" onmouseout="changeImages(\'' + name + '\');">\
 <img light="off" id="__pr_' + name + '" src="' + __pr_img_root + name + '.gif" class=img_167 alt="' + title + '"></a> ');
 }