Custom Button on CRM Form in MS CRM 2011

Create a text box. (or use any unsed field)
Place the field on the CRM Form.
Through the script convert them to a Button on the CRM Form.
Attach the OnCLick event to the Button.
Define your own custom logic on Button Click.


function CreateButton() {
    ConvertToButton('new_testbutton', 'New Button', '100px', OpenSearchPage, 'Button Label');
}


function ConvertToButton(fieldname, buttontext, buttonwidth, clickevent, title) {
    //check if object exists; else return
    if (document.getElementById(fieldname) == null) {
        return;
    }
    functiontocall = clickevent;
    crmForm.all[fieldname].DataValue = buttontext;
    crmForm.all[fieldname].readOnly = true;
    crmForm.all[fieldname].style.borderRight = "#3366cc 1px solid";
    crmForm.all[fieldname].style.paddingRight = "5px";
    crmForm.all[fieldname].style.borderTop = "#3366cc 1px solid";
    crmForm.all[fieldname].style.paddingLeft = "5px";
    crmForm.all[fieldname].style.fontSize = "11px";
    crmForm.all[fieldname].style.backgroundImage = "url(/_imgs/btn_rest.gif)";
    crmForm.all[fieldname].style.borderLeft = "#3366cc 1px solid";
    crmForm.all[fieldname].style.width = buttonwidth;
    crmForm.all[fieldname].style.cursor = "hand";
    crmForm.all[fieldname].style.lineHeight = "18px";
    crmForm.all[fieldname].style.borderBottom = "#3366cc 1px solid";
    crmForm.all[fieldname].style.backgroundRepeat = "repeat-x";
    crmForm.all[fieldname].style.fontFamily = "Tahoma";
    crmForm.all[fieldname].style.height = "20px";
    crmForm.all[fieldname].style.backgroundColor = "#cee7ff";
    crmForm.all[fieldname].style.textAlign = "center";
    crmForm.all[fieldname].style.overflow = "hidden";
    crmForm.all[fieldname].attachEvent("onmousedown", push_button);
    crmForm.all[fieldname].attachEvent("onmouseup", release_button);
    crmForm.all[fieldname].attachEvent("onclick", functiontocall);
    crmForm.all[fieldname].style.lineHeight = "14px";
    crmForm.all[fieldname + '_c'].style.visibility = 'hidden';
    crmForm.all[fieldname].title = title;
    window.focus();

    function push_button() {
        window.event.srcElement.style.borderWidth = "2px";
        window.event.srcElement.style.borderStyle = "groove ridge ridge groove";
        window.event.srcElement.style.borderColor = "#3366cc #4080f0 #4080f0 #3366cc";
    }

    function release_button() {
        window.event.srcElement.style.border = "1px solid #3366cc";
    }
}

function OpenSearchPage() {
    var features = "location=no,menubar=no,status=no,toolbar=no";
    // Open the window
    window.open("http://SearchPage.aspx"_blank", features, false);
}