jt_DialogBox = function(isModal) {
        // CONSTRUCTOR for 'jt_DialogBox' object
        if (arguments.length == 0) return;
        this.isModal = isModal;

        this.container = document.createElement('div');
        this.container.className = jt_DialogBox.className;
        this.container.dialogBox = this;

        var mainTable = document.createElement('table');
        mainTable.setAttribute('cellSpacing', '0');
        mainTable.setAttribute('cellPadding', '0');
        mainTable.setAttribute('border', '0');

        var tBodyM = document.createElement('tbody');
        var rowM = document.createElement('tr');
        var cellM = document.createElement('td');

        //*********** BEGIN Title TABLE ***********
        var titleTable = document.createElement('table');
        titleTable.setAttribute('cellSpacing', '0');
        titleTable.setAttribute('cellPadding', '0');
        titleTable.setAttribute('border', '0');
        titleTable.setAttribute('width', '100%');

        var tBodyT = document.createElement('tbody');
        var rowT = document.createElement('tr');
        var cellT = document.createElement('td');
        cellT.className = "tbLeft";
        rowT.appendChild(cellT);

        this.titleCell = document.createElement('td');
        this.titleCell.className = "Title";
        rowT.appendChild(this.titleCell);

        cellT = document.createElement('td');
        cellT.className = "tbRight";

        jt_DialogBox.initCloseIcon();
        var closeIcon = document.createElement('img');
        closeIcon.src = jt_DialogBox.closeIcon.src;
        closeIcon.setAttribute('border','0');
        closeIcon.dialogBox = this;

        var aLink = document.createElement('A');
        aLink.setAttribute('href','#');
        aLink.appendChild(closeIcon);
        aLink.onclick = jt_DialogBox.closeBox;

        cellT.appendChild(aLink);
        rowT.appendChild(cellT);

        tBodyT.appendChild(rowT);
        titleTable.appendChild(tBodyT);
        //*********** END Title TABLE ***********

        cellM.appendChild(titleTable);
        rowM.appendChild(cellM);
        tBodyM.appendChild(rowM);

        rowM = document.createElement('tr');
        cellM = document.createElement('td');
        cellM.className = "MainPanel";

        this.contentArea = document.createElement('div');
        this.contentArea.className = "ContentArea";
        cellM.appendChild(this.contentArea);

        rowM.appendChild(cellM);
        tBodyM.appendChild(rowM);
        mainTable.appendChild(tBodyM);
        this.container.appendChild(mainTable);
        jt_BodyZ.toTop(this.container);

        Drag.init(this.titleCell, this.container, 0, null, 0);
        }


/************ BEGIN: Public Methods ************/
jt_DialogBox.imagePath = "/src/dialogs/"; // set by application; directory path to 'window_close.gif' in titleBar

jt_DialogBox.prototype.show = function() {
        this.container.style.display = "block";
        jt_BodyZ.toTop(this.container);
        //jt_TraceObj.show(this.container);
        if (this.isModal) jt_Veil.show(true);
        jt_divOnScrn(this.container);
        }

jt_DialogBox.prototype.hide = function(ok) {
        this.container.style.display = "none";
        if (this.isModal) jt_Veil.show(false);
        if (ok) {
                if (this.callOK)
                        if (this.returnData) this.callOK(this.returnData);
                        else this.callOK();
                }
        else if (this.callCancel) this.callCancel();
        }

jt_DialogBox.prototype.moveTo = function(x, y) {
        if (x == -1) x = Math.round((document.body.clientWidth - this.container.offsetWidth) / 2);
        if (y == -1) y = Math.round((document.body.clientHeight - this.container.offsetHeight) / 2) + document.body.scrollTop;
        this.container.style.left = x + "px";
        this.container.style.top = y + "px";
        }

jt_DialogBox.prototype.setTitle = function(title) {
        this.titleCell.innerHTML = title;
        }

jt_DialogBox.prototype.setUrl = function(url, height, width) {
        // creates one IFRAME above 'setContent()' area, updates 'url'
        if (!this._jtDialogBIF) {
                this._jtDialogBIF = document.createElement('IFRAME');
                this._jtDialogBIF.setAttribute('frameBorder', 'no');
                this._jtDialogBIF.style.width = "100%";
                if (height) this._jtDialogBIF.style.height = height;
                if (width) this._jtDialogBIF.style.width = width;
                this.contentArea.parentNode.insertBefore(this._jtDialogBIF, this.contentArea);
                }
        this._jtDialogBIF.src = url;
        }

jt_DialogBox.prototype.getUrl = function() {
        if (this._jtDialogBIF) {
                jt_TraceObj.show(this._jtDialogBIF);
                var url = this._jtDialogBIF.src;
                if (this._jtDialogBIF.contentWindow) {
                        try {url = this._jtDialogBIF.contentWindow.location.href;}
                        catch(e) {}
                        }
                return url;
                }
        }

jt_DialogBox.prototype.setContent = function(htmlContent) {
        this.contentArea.innerHTML = htmlContent;
        }

jt_DialogBox.prototype.setWidth = function(width) {
        this.contentArea.style.width = width + "px";
        }

jt_DialogBox.prototype.setCallOK = function(callOK) {
        // set by application as needed
        this.callOK = callOK;
        }

jt_DialogBox.prototype.setCallCancel = function(callCancel) {
        // set by application as needed
        this.callCancel = callCancel;
        }

jt_DialogBox.prototype.getContentNode = function() {
        // expose 'contentArea' DOM node for direct manipulation
        return this.contentArea;
        }
/************ END: Public Methods ************/


/************ BEGIN: Private Methods ************/
jt_DialogBox.className = "jtDialogBox"; // CSS className
jt_DialogBox.closeIcon = null;
jt_DialogBox.maxDepth = 5; // optimize search of parent nodes

jt_DialogBox.initCloseIcon = function() {
        // pre-fetch this icon so it doesn't distort dialog box size
        if (jt_DialogBox.closeIcon == null) {
                jt_DialogBox.closeIcon = new Image();
                jt_DialogBox.closeIcon.src = jt_DialogBox.imagePath + "window_close.gif";
                }
        }

jt_DialogBox.closeBox = function(e) {
        if (!e) e = window.event;
        var node = e.target ? e.target : e.srcElement;
        var count = 0;
        while ((node != null) && (count < jt_DialogBox.maxDepth)) {
                if (node.dialogBox) {
                        node.dialogBox.hide();
                        return false;
                        }
                node = node.parentNode;
                count++;
                }
        return false;
        }