function searchValidation()
{
    
    var frm = document.search_form;
    var val = frm.searchbox.value;
    if(val == "")
    {
        alert("Please enter the word for search");
        frm.searchbox.focus();
        return false;
    }
    frm.action = "searchResult.php?text="+val;
    frm.submit();
}