// JavaScript Document

<!-- hide this script from non-javascript-enabled browsers

if (document.images) {
Home_F1 = new Image(140,32); Home_F1.src = "Home.gif";
Home_F2 = new Image(140,32); Home_F2.src = "Home_F2.gif";
Home_F3 = new Image(140,32); Home_F3.src = "Home_F3.gif";
Home_F4 = new Image(140,32); Home_F4.src = "Home_F4.gif";
Feature_F1 = new Image(140,34); Feature_F1.src = "Feature.gif";
Feature_F2 = new Image(140,34); Feature_F2.src = "Feature_F2.gif";
Feature_F3 = new Image(140,34); Feature_F3.src = "Feature_F3.gif";
Feature_F4 = new Image(140,34); Feature_F4.src = "Feature_F4.gif";
Feedback_F1 = new Image(140,37); Feedback_F1.src = "Feedback.gif";
Feedback_F2 = new Image(140,37); Feedback_F2.src = "Feedback_F2.gif";
Feedback_F3 = new Image(140,37); Feedback_F3.src = "Feedback_F3.gif";
Feedback_F4 = new Image(140,37); Feedback_F4.src = "Feedback_F4.gif";
Forums_F1 = new Image(140,33); Forums_F1.src = "Forums.gif";
Forums_F2 = new Image(140,33); Forums_F2.src = "Forums_F2.gif";
Forums_F3 = new Image(140,33); Forums_F3.src = "Forums_F3.gif";
Forums_F4 = new Image(140,33); Forums_F4.src = "Forums_F4.gif";
Links_F1 = new Image(140,32); Links_F1.src = "Links.gif";
Links_F2 = new Image(140,32); Links_F2.src = "Links_F2.gif";
Links_F3 = new Image(140,32); Links_F3.src = "Links_F3.gif";
Links_F4 = new Image(140,32); Links_F4.src = "Links_F4.gif";
Novice_F1 = new Image(140,36); Novice_F1.src = "Novice.gif";
Novice_F2 = new Image(140,36); Novice_F2.src = "Novice_F2.gif";
Novice_F3 = new Image(140,36); Novice_F3.src = "Novice_F3.gif";
Novice_F4 = new Image(140,36); Novice_F4.src = "Novice_F4.gif";
Search_F1 = new Image(140,33); Search_F1.src = "Search.gif";
Search_F2 = new Image(140,33); Search_F2.src = "Search_F2.gif";
Search_F3 = new Image(140,33); Search_F3.src = "Search_F3.gif";
Search_F4 = new Image(140,33); Search_F4.src = "Search_F4.gif";
Sitetour_F1 = new Image(140,36); Sitetour_F1.src = "Sitetour.gif";
Sitetour_F2 = new Image(140,36); Sitetour_F2.src = "Sitetour_F2.gif";
Sitetour_F3 = new Image(140,36); Sitetour_F3.src = "Sitetour_F3.gif";
Sitetour_F4 = new Image(140,36); Sitetour_F4.src = "Sitetour_F4.gif";
toc_F1 = new Image(140,35); toc_F1.src = "toc.gif";
toc_F2 = new Image(140,35); toc_F2.src = "toc_F2.gif";
toc_F3 = new Image(140,35); toc_F3.src = "toc_F3.gif";
toc_F4 = new Image(140,35); toc_F4.src = "toc_F4.gif";
Whatsnew_F1 = new Image(140,34); Whatsnew_F1.src = "Whatsnew.gif";
Whatsnew_F2 = new Image(140,34); Whatsnew_F2.src = "Whatsnew_F2.gif";
Whatsnew_F3 = new Image(140,34); Whatsnew_F3.src = "Whatsnew_F3.gif";
Whatsnew_F4 = new Image(140,34); Whatsnew_F4.src = "Whatsnew_F4.gif";
}

/* Function that swaps images. */

function di20(id, newSrc) {
    var theImage = FWFindImage(document, id, 0);
    if (theImage) {
        theImage.src = newSrc;
    }
}

/* Functions that track and set toggle group button states. */

function FWFindImage(doc, name, j) {
    var theImage = false;
    if (doc.images) {
        theImage = doc.images[name];
    }
    if (theImage) {
        return theImage;
    }
    if (doc.layers) {
        for (j = 0; j < doc.layers.length; j++) {
            theImage = FWFindImage(doc.layers[j].document, name, 0);
            if (theImage) {
                return (theImage);
            }
        }
    }
    return (false);
}


function setCookie(name, value) {
    document.cookie = name + "=" + escape(value);
}

function getCookie(Name) {
    var search = Name + "=";
    var retVal = "";
    if (document.cookie.length > 0) {
        offset = document.cookie.indexOf(search);
        if (offset != -1) {
            end = document.cookie.indexOf(";", offset);
            offset += search.length;
            if (end == -1) {
                end = document.cookie.length;
            }
            retVal = unescape(document.cookie.substring(offset, end));
        }
    }
    return (retVal);
}

function InitGrp(grp) {
    var cmd = false;
    if (getCookie) {
        cmd = getCookie(grp);
    }
    if (cmd) {
        eval("GrpDown(" + cmd + ")");
        eval("GrpRestore(" + cmd + ")");
    }
}

function FindGroup(grp, imageName) {
    var img = FWFindImage(document, imageName, 0);
    if (!img) {
        return (false);
    }
    var docGroup = eval("document.FWG_" + grp);
    if (!docGroup) {
        docGroup = new Object();
        eval("document.FWG_" + grp + " = docGroup");
        docGroup.theImages = new Array();
    }
    if (img) {
        var i;
        for (i = 0; i < docGroup.theImages.length; i++) {
            if (docGroup.theImages[i] == img) {
                break;
            }
        }
        docGroup.theImages[i] = img;
        if (!img.atRestSrc) {
            img.atRestSrc = img.src;
            img.initialSrc = img.src;
        }
    }
    return (docGroup);
}

function GrpDown(grp, imageName, downSrc, downOver) {
    if (!downOver) {
        downOver = downSrc;
    }
    var cmd = "'" + grp + "','" + imageName + "','" + downSrc + "','" + downOver + "'";
    setCookie(grp, cmd);
    var docGroup = FindGroup(grp, imageName, false);
    if (!docGroup || !downSrc) {
        return;
    }
    obj = FWFindImage(document, imageName, 0);
    var theImages = docGroup.theImages;
    if (theImages) {
        for (i = 0; i < theImages.length; i++) {
            var curImg = theImages[i];
            if (curImg && curImg != obj) {
                curImg.atRestSrc = curImg.initialSrc;
                curImg.isDown = false;
                obj.downOver = false;
                curImg.src = curImg.initialSrc;
            }
        }
    }
    obj.atRestSrc = downSrc;
    obj.downOver = downOver;
    obj.src = downOver;
    obj.isDown = true;
}

function GrpSwap(grp) {
    var i, j = 0, newSrc, objName;
    var docGroup = false;
    for (i = 1; i < (GrpSwap.arguments.length - 1); i += 2) {
        objName = GrpSwap.arguments[i];
        newSrc = GrpSwap.arguments[i + 1];
        docGroup = FindGroup(grp, objName);
        if (!docGroup) {
            continue;
        }
        obj = FWFindImage(document, objName, 0);
        if (!obj) {
            continue;
        }
        if (obj.isDown) {
            if (obj.downOver) {
                obj.src = obj.downOver;
            }
        } else {
            obj.src = newSrc;
            obj.atRestSrc = obj.initialSrc;
        }
        obj.skipMe = true;
        j++;
    }
    if (!docGroup) {
        return;
    }
    theImages = docGroup.theImages;
    if (theImages) {
        for (i = 0; i < theImages.length; i++) {
            var curImg = theImages[i];
            if (curImg.atRestSrc && !curImg.skipMe) {
                curImg.src = curImg.atRestSrc;
            }
            curImg.skipMe = false;
        }
    }
}

function GrpRestore(grp) {
    var docGroup = eval("document.FWG_" + grp);
    if (!docGroup) {
        return;
    }
    theImages = docGroup.theImages;
    if (theImages) {
        for (i = 0; i < theImages.length; i++) {
            var curImg = theImages[i];
            if (curImg.atRestSrc) {
                curImg.src = curImg.atRestSrc;
            }
        }
    }
}

// stop hiding -->