var searchtxt = $Obj("ctl00_CPH_Navigator1_txtSearch");
var searchbtn = $Obj("btnSearch");
var tiptext = "Enter keyword...";
if (searchtxt.value == "" || searchtxt.value == tiptext) {
    searchtxt.className += " searchtip";
    searchtxt.value = tiptext;
}
searchtxt.onfocus = function(e) {
    if (searchtxt.value == tiptext) {
        searchtxt.value = "";
        searchtxt.className = searchtxt.className.replace(" searchtip", "");
    }
}
searchtxt.onblur = function(e) {
    if (searchtxt.value == "") {
        searchtxt.className += " searchtip";
        searchtxt.value = tiptext;
    }
}
searchbtn.onclick = function(e) {
var SearchText = Trim(searchtxt.value);
if (SearchText == "" || SearchText == tiptext) {
        alert('Please input a search term.');
        return false;
    }
    else {
        window.location.href = "/Paintings/SearchResults.aspx?SearchText=" + encode(SearchText);
    }
}