function hidecart() {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById('cart_block').style.display = 'none';
}
else {
if (document.layers) { // Netscape 4
document.cart_block.display = 'none';
}
else { // IE 4
document.all.cart_block.style.display = 'none';
}
}
}

function showcart() {
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById('cart_block').style.display = 'block';
}
else {
if (document.layers) { // Netscape 4
document.cart_block.display = 'block';
}
else { // IE 4
document.all.cart_block.style.display = 'block';
}
}
}