function SpecialOfferSearchIndexChange() 
{
    var Targetedat = document.getElementById('ctl00_ContentPlaceHolder_MainContent_SpecialOfferSearch_DropDownList_AvailableTo').value;
    var Brand = document.getElementById('ctl00_ContentPlaceHolder_MainContent_SpecialOfferSearch_DropDownList_Make').value;
    Brand = Brand.replace(" ", "-").toLowerCase();
    Targetedat = Targetedat.replace(" ", "-");
    return "default.aspx?Brand="+Brand+"&targetedat="+Targetedat;
}