function changeParameter(url, page, pagination, orderBy, keyword){
  
  var u = '';
  if (page > 0)
    u += '?page='+page; 
  if (pagination >= 0)
    u += '&pagination='+pagination;
  if (orderBy != "")
    u += '&orderBy='+orderBy;
  if (keyword != "")
    u += '&keyword='+keyword;
  
  window.location.href = url+u;
}


function changePage(url, page, pagination, orderBy, keyword){
  
  changeParameter(url, page, pagination, orderBy, keyword);

}


function changePagination(url, page, pagination, orderBy, keyword){
  
  changeParameter(url, page, pagination, orderBy, keyword);

}

function changeOrderBy(url, page, pagination, orderBy, keyword){
  
  changeParameter(url, page, pagination, orderBy, keyword);

}


function prev(url, page, pagination, orderBy, keyword){
  
  changeParameter(url, page, pagination, orderBy, keyword);

}

function next(url, page, pagination, orderBy, keyword){
  
  changeParameter(url, page, pagination, orderBy, keyword);

}