Google Reader Grease Monkey Script

I was bored one day and decided that I wanted to fix up the Google Reader interface a little bit and this was the result. Sure there are more useful GM scripts, but this is a start.

// ==UserScript==
// @name           Google Reader Fixup
// @namespace      http://intellectualponderings.blogspot.com
// @version        1.0
// @description    Hides the sliding navigation pane.  Hides header below the blog name and the footer bar.  Adds "Info" button next to the blog name to toggle header and footer bar.  
// @include        htt*://www.google.*/reader*
// @include        http://www.google.com/reader/view/*
// ==/UserScript==

var cssHidechromeheader = <><![CDATA[
    #viewer-header, #viewer-footer { display: none; }
    ]]></>.toString();
var cssShowchromeheader = <><![CDATA[
    #viewer-header, #viewer-footer { display: inline; }
    ]]></>.toString();
var cssHideNav= <><![CDATA[
    #chrome-lhn-toggle { display: none; }
    ]]></>.toString();
 
function getElementPosition(element) {
    var pos = {x:0, y:0};
    if (element.offsetParent) {
        while (element.offsetParent) {
            pos.x += element.offsetLeft;
            pos.y += element.offsetTop;
            element = element.offsetParent;
        }
    } else if (element.x) {
        pos.x += element.x;
        pos.y += element.y;
    }
    return pos; 
}

function InfoMouseClick(e) {
    var gei = document.getElementById,
        header = gei('viewer-header'),
        hDisplay = header.style.display,
        footer = gei('viewer-footer'),
        entries = gei('entries'),
        entriesStatus = gei('entries-status');
    if ((hDisplay == "none")||(hDisplay == null)||(hDisplay == "")) {
        header.style.display = footer.style.display = "inline";
        entriesStatus.style.right = "0.5em";
    } else {
        header.style.display = footer.style.display = "none";
    }
    entries.style.height = String(d.documentElement.clientHeight - getElementPosition(entries).y - footer.offsetHeight) + "px";
}

(function () {
    //Initial Styles
    GM_addStyle( cssHidechromeheader );
    GM_addStyle( cssHideNav );
    var chrome = document.getElementById('chrome-header');
    //Button Element
    var buttonStr = " 
 
Info
";
    var googbutton=document.createElement('div');
    googbutton.className='goog-button-base goog-button-base-outer-box goog-inline-block';
    googbutton.style.margin = "0px 0px 0px 6px";
    googbutton.innerHTML=buttonStr;
    chrome.appendChild(googbutton);
    googbutton.addEventListener('click', InfoMouseClick, false); 
})();