function checkkeyword(){
    var key = $('#cat_Search').val();
    if(key==''){
        alert('Can not be empty!');
        return false;
    }else{
        window.location.href='/search.php?sort='+key;
    }
}
function CheckVendor(){
    if($("#cert_id").val()==undefined){
        alert("Can't Empty");
        return false;
    }else{
        var a=  $("#cert_id").val();
        location.href='/'+a+'.html';
    }
}