//Preload both the images
var images = new Array(2);
images[0] = new Image();
images[0].src = "img/txt_hide.gif"
images[1] = new Image();
images[1].src = "img/txt_hide2.gif"
images[2] = new Image();
images[2].src = "img/txt_see.gif"
images[3] = new Image();
images[3].src = "img/txt_see2.gif"

//Toggles the image
function changer() {
if(document.images['txt_btn'].src == images[0].src) document.images['txt_btn'].src = images[1].src 
else document.images['txt_btn'].src = images[0].src
}
function ch() {
if(document.images['txt_btn'].src == images[2].src) document.images['txt_btn'].src = images[3].src 
else document.images['txt_btn'].src = images[2].src
}

function toonmenu(elmnt)
{
document.all(elmnt).style.visibility="visible"
}
function verstopmenu(elmnt)
{
document.all(elmnt).style.visibility="hidden"
}