接前代码

function outputFolderLink() {
    if(this.hreference && this.target) {
        doc.write("<A HREF='" + this.hreference + "' TARGET=""+this.target.name+"" ")
        if(browserVersion > 0) {
       doc.write("onClick='JavaScript: clickOnFolder("+this.id+")'")
        }
        doc.write(">")
    }
    else
        doc.write("<A>")
}
function addChild(childNode) {
    selectfile[fEntries]=childNode.desc;
    fEntries++;
    this.children[this.nChildren] = childNode;
    this.nChildren++;
    return(childNode);
}
function folderSubEntries() {
    var i = 0;
    var se = this.nChildren;
    for(i = 0; i < this.nChildren; i++) {
        if(this.children[i].children) //is a folder
       se = se + this.children[i].subEntries();
    }
    return(se)
}
// Definition of class Item (a document or link inside a Folder)
function Item(itemDescription, hreference, itemLink, itemImg,parentid) // Constructor
{
    // constant data
    this.desc = itemDescription
    this.link = itemLink
    this.hreference = hreference;
    this.id =index;
    this.navObj = 0;    //initialized in render()