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

function mouseOver()
{
document.getElementById("home").src ="http://therasmussite.4t.com/img/home_1.bmp";

}
function mouseOut()
{
document.getElementById("home").src ="http://therasmussite.4t.com/img/home.bmp";
}

function dark()
{
document.getElementById("up").src ="http://therasmussite.4t.com/img/up_1.bmp";
}
function light()
{
document.getElementById("up").src ="http://therasmussite.4t.com/img/up.bmp";
}


function lv_light ()
{
document.getElementById("lv").src ="http://therasmussite.4t.com/img/lv_1.gif";
}
function lv_dark ()
{
document.getElementById("lv").src ="http://therasmussite.4t.com/img/lv.gif";
}
function en_light ()
{
document.getElementById("en").src ="http://therasmussite.4t.com/img/en_1.gif";
}
function en_dark ()
{
document.getElementById("en").src ="http://therasmussite.4t.com/img/en.gif";
}