function TreeMenu(node,id)
... {
var sibling = document.getElementById(id);
if (sibling.style.display == 'none')
...{
if (node.childNodes.length > 0)
...{
if (node.childNodes[0].tagName == "IMG")
...{
node.childNodes[0].src = "minus.gif"; //替换为展开时的图片
}
}
sibling.style.display = '';
}
else
...{
if (node.childNodes.length > 0)
...{
if (node.childNodes[0].tagName == "IMG")
...{
node.childNodes[0].src = "plus.gif"; //替换为收起时的图片
}
}
sibling.style.display = 'none';
}
}