Change the header color of form using Javascript.

InjectHeaderCSS("00C78C","F6F8FA");

function InjectHeaderCSS(startColor, endColor) {

var headerCSSIE9 = ".ms-crm-Form-HeaderContainer{ filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#" + startColor + ", endColorstr=#" + endColor + "); }";
var headerCSSIE10 = ".ms-crm-Form-HeaderContainer{background: -ms-linear-gradient(top,  #2989d8 0%,#" + startColor + " 0%,#F6F8FA 100%,#" + endColor + " 100%);}";

var headerchrome = ".ms-crm-Form-HeaderContainer{background: -webkit-linear-gradient(top,  #2989d8 0%,#" + startColor + " 0%,#F6F8FA 100%,#" + endColor + " 100%);}"

var head = document.getElementsByTagName('head')[0];
var styleElement = document.createElement('style');
styleElement.setAttribute('type', 'text/css');
if (styleElement.styleSheet) {
    if (Mscrm.Utilities.isIE9()) {
        styleElement.styleSheet.cssText = headerCSSIE9;
    } else if (Mscrm.Utilities.isIE10()) {
        styleElement.styleSheet.cssText = headerCSSIE10;
    } else if (Mscrm.Utilities.isChrome()) {
        styleElement.styleSheet.cssText = headerchrome;
    } else {
        styleElement.styleSheet.cssText = headerCSSIE9;
    }
}
else {

    if (Mscrm.Utilities.isIE9()) {
        styleElement.appendChild(document.createTextNode(headerCSSIE9));
    } else if (Mscrm.Utilities.isIE10()) {
        styleElement.appendChild(document.createTextNode(headerCSSIE10));
    } else if (Mscrm.Utilities.isChrome()) {
        styleElement.appendChild(document.createTextNode(headerchrome));
    } else {
        styleElement.appendChild(document.createTextNode(headerCSSIE9));
    }
}
head.appendChild(styleElement);

 }

Default Activity ‘Filter on’ to ‘All’ Dynamics CRM 2011 UR12

//default the Activities 'Filter on' to 'All' for Account and Contact for rollup 12 

function filterAllActivities() {
    document.getElementById("navActivities").onclick = function () {
        Mscrm.Details.loadArea(this, "areaActivities");
        document.getElementById("areaActivitiesFrame").onload = function () {
            var entityName = Xrm.Page.data.entity.getEntityName();
            var entity = entityName.charAt(0).toUpperCase() + entityName.substr(1);
            var doc = this.contentWindow.document;
            var filterOn = doc.getElementById("crmGrid_" + entity + "_ActivityPointers_datefilter");
            filterOn.value = "All";
            var evt = document.createEvent("HTMLEvents");
            evt.initEvent("change", false, true);
            filterOn.dispatchEvent(evt);
        };
    };
}

How to get FetchXml of Advance Find View?

    var advFind = _mainWindow.$find("advFind"),
    iOldMode = advFind.get_fetchMode();
    advFind.set_fetchMode(Mscrm.FetchModes.ignoreEmpty);
    var sFetchXml = advFind.get_fetchXml();