this.safeHTML = function(unsafeCode) {
    return unsafeCode.replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/&/g, "&amp;");
};
this.unsafeHTML = function(safeCode) {
    return safeCode.replace(/&amp;/g, "&").replace(/&lt;/g, "<").replace(/&gt;/g, ">");
};
this. clickHandler = function (event)
{
    if ((event. button == 2) && event. ctrlKey)
        this. mObj. setPri ();
    else
        this. mObj. setSub ();
    if (event. ctrlKey)
    {
        this. showPopup (this);
        return;
    }
    if (event. button == 0)
    {
    this. innerHTML = this. innerHTML || this.safeHTML(content. document. body. innerHTML);
    this. searchPrompt('',false);        
    }
    else if (event. button == 1)
    {
    this. showPopup (this);    
    }
    else
    {
        content. document. body. innerHTML = this.unsafeHTML(this. innerHTML) || content. document. body. innerHTML;
        this. innerHTML = "";
    }
};
this.showPopup = function(node)
{
    var popup = document.getElementById("custombuttons-contextpopup");
    var x = node.boxObject.x;
    var y = node.boxObject.y + node.boxObject.height;
    document.popupNode = node;
    popup.showPopup(node, x, y, "popup", null, null);
};
this. doHighlight = function (bodyText, searchTerm, highlightStartTag, highlightEndTag) 
{
    if ((!highlightStartTag) || (!highlightEndTag))
    {
        highlightStartTag = "<font style='background-color:" + this. highlightColor + ";'>";
        highlightEndTag = "</font>";
    }
    var newText = "";
    var i = -1;
    var lcSearchTerm = searchTerm.toLowerCase();
    var lcBodyText = bodyText.toLowerCase();
    while (bodyText.length > 0)
    {
        i = lcBodyText.indexOf(lcSearchTerm, i+1);
        if (i < 0)
        {
            newText += bodyText;
            bodyText = "";
        }
        else
        {
            if (bodyText.lastIndexOf(">", i) >= bodyText.lastIndexOf("<", i))
            {
                if (lcBodyText.lastIndexOf("/script>", i) >= lcBodyText.lastIndexOf("<script", i))
                {
                    newText += bodyText.substring(0, i) + highlightStartTag + bodyText.substr(i, searchTerm.length) + highlightEndTag;
                    bodyText = bodyText.substr(i + searchTerm.length);
                    lcBodyText = bodyText.toLowerCase();
                    i = -1;
                }
            }
        }
    }
    return newText;
}
this. highlightSearchTerms = function (searchText, treatAsPhrase, warnOnFailure, highlightStartTag, highlightEndTag)
{
    if (treatAsPhrase)
    {
        searchArray = [searchText];
    }
    else
    {
        searchArray = searchText.split(" ");
    }
    if (!content.document.body || typeof(content.document.body.innerHTML) == "undefined")
    {
        if (warnOnFailure)
        {
            alert("The text of this page is not available. Highlighting will not work.");
        }
        return false;
    }
    var bodyText = content.document.body.innerHTML;
    for (var i = 0; i < searchArray.length; i++)
    {
        bodyText = this. doHighlight(bodyText, searchArray[i], highlightStartTag, highlightEndTag);
    }
    content.document.body.innerHTML = bodyText;
    return true;
}
this. searchPrompt = function ()
{
    var searchText = document.commandDispatcher.focusedWindow.getSelection().toString() || prompt('Highlight:','');
    searchText && this. highlightSearchTerms(searchText, true);
}

this. changeColor = function (menuitem, event)
{
    var topmenuitem = document. getElementById (document. popupNode. firstId);
    topmenuitem. setAttribute ("label", "* " + menuitem. getAttribute ("label"));
    document. popupNode. highlightColor = menuitem. getAttribute ("value");
};

var colors =
{
    "Yellow": "yellow", "Green": "green", "Blue": "blue", "Red": "red"
};
var mItem = {};
document. getElementById (CB2const. sCBCtxtMenu). setAttribute ("oncommand", "event.stopPropagation()");
var mObj = custombuttons. getCbContextObj (this);
this. mObj = mObj;
mObj. setSub ();
var mItem = new mObj. getItem ();
mItem. id = "topmenuitem";
mItem. label = "* Yellow";
mItem. value = "yellow";
mItem = mObj. insertBefore (mItem, mObj. oMenu. lastChild);
this. firstId = mItem. id;
mItem = new mObj. getItem ();
mItem = mObj. insertBefore (mItem, mObj. oMenu. lastChild);
for (var i in colors)
{
    var mItem = new mObj. getItem ();
    mItem. id = i;
    mItem. label = i;
    mItem. value = colors [i];
    mItem. oncommand = "document. popupNode. changeColor (this, event);"
    mItem = mObj. insertBefore (mItem, mObj. oMenu. lastChild);
}
mItem = new mObj. getItem ();
mObj. insertBefore (mItem, mObj. oMenu. lastChild);

this. innerHTML = "";
this. highlightColor = "yellow";
this. setAttribute ('onclick', 'this.clickHandler(event)');
this.setAttribute("context", "");

this.tooltipText = "L=Highlight\nM=Select color + CB menu \nR=Remove highlight ";