function show() {
var x = document.getElementById('select').value;
var y = document.getElementById('select_pay').value;
if(x == '' || y == '') { 
document.getElementById('button').disabled = true; 
document.getElementById('button').style.background='url(images/but/zakaz_d.gif)';
}
if(x != '' && y != '') { 
document.getElementById('button').style.background='url(images/but/zakaz.gif)';
document.getElementById('button').disabled = false; 
} }

function img(a, w, h) {
var win = "width="+w+",height="+h+",menubar=no,location=no,resizable=no,scrollbars=no";
newWin = window.open('foto.php?foto='+a,"фото",win);
newWin.focus();
}

function menu(o){
if(document.getElementById(o).style.display=="none") {
document.getElementById(o).style.display="block"; }
else {
document.getElementById(o).style.display="none";
} }