var count = 1
function PreloadImages(image, width, height, ext)
{
  eval("a" + count + "=new Image(" + width + "," + height + ");" + "a" + count + ".src='/images/" + image + "_off." + ext + "';")
  count++
  eval("a" + count + "=new Image(" + width + "," + height + ");" + "a" + count + ".src='/images/" + image + "_on." + ext + "';")
  count++
}

function ChangeImage(img, imageSrc)
{ document.images[img].src = '/images/' + imageSrc }

function ExplorerFix()
{ for (a in document.links) document.links[a].onfocus = document.links[a].blur }

if (document.all) document.onmousedown = ExplorerFix;

PreloadImages('menu_arrow', 15, 15, 'gif')