if (document.images)
{ 

img6on = new Image ;img6off = new Image ;
img7on = new Image ;img7off = new Image ;
img8on = new Image ;img8off = new Image ;
img19on = new Image ;img19off = new Image ;
img12on = new Image ;img12off = new Image ;
img13on = new Image ;img13off = new Image ;
img14on = new Image ;img14off = new Image ;
img15on = new Image ;img15off = new Image ;
img16on = new Image ;img16off = new Image ;
img17on = new Image ;img17off = new Image ;


img6on.src = "./images/clo2.gif";img6off.src = "./images/clo1.gif";
img7on.src = "./images/clo2.gif";img7off.src = "./images/clo1.gif";
img8on.src = "./images/clo2.gif";img8off.src = "./images/clo1.gif";
img19on.src = "./images/clo2.gif";img19off.src = "./images/clo1.gif";
img12on.src = "./images/clo2.gif";img12off.src = "./images/clo1.gif";
img13on.src = "./images/clo2.gif";img13off.src = "./images/clo1.gif";
img14on.src = "./images/clo2.gif";img14off.src = "./images/clo1.gif";
img15on.src = "./images/clo2.gif";img15off.src = "./images/clo1.gif";
img16on.src = "./images/clo2.gif";img16off.src = "./images/clo1.gif";
img17on.src = "./images/clo2.gif";img17off.src = "./images/clo1.gif";

img5on = new Image ;img5off = new Image;
img5on.src = "./images/kn2.gif";img5off.src = "./images/kn1.gif";
}
function img_act(imgName) {
if (document.images)
{ imgOn = eval (imgName + "on.src");
document [imgName].src = imgOn; } }
function img_inact(imgName) {
if (document.images)
{ imgOff = eval(imgName + "off.src");
document [imgName].src = imgOff; } }

function showmenu(elmnt)
{
document.getElementById(elmnt).style.visibility="visible"
}
function hidemenu(elmnt)
{
document.getElementById(elmnt).style.visibility="hidden"
}