// Help choose from four UI pseudo-window flavors
function getCurrOSUI() {
    var ua = navigator.userAgent;
    if (ua.indexOf("Mac") != -1) {
        if (ua.indexOf("OS X") != -1 || ua.indexOf("MSIE 5.2") != -1) {
            return "macosX";
        } else {
            return "macos9";
        }
    } else if (ua.indexOf("Windows XP") != -1 || ua.indexOf("NT 5.1") != -1) {
        return "winxp";
    } else if ((document.compatMode && document.compatMode != "BackComp") || 
        (navigator.product && navigator.product == "Gecko")) {
        // Win9x and CSS-compatible
        return "win9x";
    } else {
        // default for Windows 9x in quirks mode, Unix/Linux, & unknowns
        return "win9xQ";
    }
}
var currOS = getCurrOSUI();
// Load OS-specific style sheet for pseudo dialog layer
document.write("<link rel='stylesheet' type='text/css' href='dialogLayer_" + currOS + ".css'>");

//******************************
//  BEGIN LAYER DIALOG CODE
//******************************/

// One object tracks the current pseudo-window layer.
var dialogLayer = {layer:null, visible:false};

// position and show pseudowindow 
// set x and y position to appear nicely on home page
function placeOnWindow(elemID) {
    // 'obj' is the positionable object
    var obj = getRawObject(elemID);
    // window scroll factors
    var scrollX = 0, scrollY = 0;
    if (document.body && typeof document.body.scrollTop != "undefined") {
        scrollX += document.body.scrollLeft;
        scrollY += document.body.scrollTop;
        if (document.body.parentNode && 
            typeof document.body.parentNode.scrollTop != "undefined") {
            scrollX += document.body.parentNode.scrollLeft;
            scrollY += document.body.parentNode.scrollTop
        }
    } else if (typeof window.pageXOffset != "undefined") {
        scrollX += window.pageXOffset;
        scrollY += window.pageYOffset;
    }
    //following are absolute positions specified by client; was 296, 18
    //positions the popup window in the lower fram
    var x = 328;
    var y = 25;
    shiftTo(obj, x, y);
}

// Center a positionable element whose name is passed as 
// a parameter in the current window/frame, and show it
function centerOnWindow(elemID) {
    // 'obj' is the positionable object
    var obj = getRawObject(elemID);
    // window scroll factors
    var scrollX = 0, scrollY = 0;
    if (document.body && typeof document.body.scrollTop != "undefined") {
        scrollX += document.body.scrollLeft;
        scrollY += document.body.scrollTop;
        if (document.body.parentNode && 
            typeof document.body.parentNode.scrollTop != "undefined") {
            scrollX += document.body.parentNode.scrollLeft;
            scrollY += document.body.parentNode.scrollTop
        }
    } else if (typeof window.pageXOffset != "undefined") {
        scrollX += window.pageXOffset;
        scrollY += window.pageYOffset;
    }
    var x = Math.round((getInsideWindowWidth()/2) - 
        (getObjectWidth(obj)/2)) + scrollX;
    var y = Math.round((getInsideWindowHeight()/2) - 
        (getObjectHeight(obj)/2)) + scrollY;
    shiftTo(obj, x, y);
}

function initLayerDialog() {
    document.getElementById("closebox").src = "closeBox_" + currOS + ".jpg";
    dialogLayer.layer = document.getElementById("pseudoWindow");
}

// Set up and display pseudo-window.
// Parameters:
//    url -- URL of the page/frameset to be loaded into iframe
//    returnFunc -- reference to the function (on this page)
//                  that is to act on the data returned from the dialog
//    args -- [optional] any data you need to pass to the dialog
function openLayerDialogDelay(url, title, returnFunc, args) {
    if (!dialogLayer.visible) {
        // Initialize properties of the modal dialog object.
        dialogLayer.url = url;
        dialogLayer.title = title;
        dialogLayer.returnFunc = returnFunc;
        dialogLayer.args = args;
        dialogLayer.returnedValue = "";
        
        // Load URL
        document.getElementById("contentFrame").src = url;
        
        // Set title of "window"
        document.getElementById("barTitle").firstChild.nodeValue = title;
        
        // Center "window" in browser window or frame
        //dialogLayer.layer.style.visibility = "hidden";
        //dialogLayer.layer.style.display = "block"
        //centerOnWindow("pseudoWindow");
        
        // Center "window" in browser window or frame
        dialogLayer.layer.style.visibility = "hidden";
        dialogLayer.layer.style.display = "block"
        placeOnWindow("pseudoWindow");
        
        // Show it and set visibility flag
        //dialogLayer.layer.style.visibility = "visible"
        setTimeout('dialogLayer.layer.style.visibility = "visible"', 1600);
        dialogLayer.visible = true;
     }

}

function openLayerDialog(url, title, returnFunc, args) {
    if (!dialogLayer.visible) {
        // Initialize properties of the modal dialog object.
        dialogLayer.url = url;
        dialogLayer.title = title;
        dialogLayer.returnFunc = returnFunc;
        dialogLayer.args = args;
        dialogLayer.returnedValue = "";
        
        // Load URL
        document.getElementById("contentFrame").src = url;
        
        // Set title of "window"
        document.getElementById("barTitle").firstChild.nodeValue = title;
        
        // Center "window" in browser window or frame
        //dialogLayer.layer.style.visibility = "hidden";
        //dialogLayer.layer.style.display = "block"
        //centerOnWindow("pseudoWindow");
        
        // Center "window" in browser window or frame
        dialogLayer.layer.style.visibility = "hidden";
        dialogLayer.layer.style.display = "block"
        placeOnWindow("pseudoWindow");
        
        // Show it and set visibility flag
        dialogLayer.layer.style.visibility = "visible"
        dialogLayer.visible = true;
     }

}

function closeLayerDialog() {
    dialogLayer.layer.style.display = "none"
    dialogLayer.visible = false;
}
//**************************
//  END LAYER DIALOG CODE
//**************************/