// JScript File

var search = new String();
search  = window.location.search;

function DeleteParam(param) {
   search = search.replace("?","");
   var params  = new Array();
   params = search.split("&");
   var newSearch = new String();
   for (i=0;i<params.length;i++) {
       var str = params[i].split("=")[0];
       if (str != param && str != "") {
            newSearch += params[i] + "&";
       }
   }
   search = newSearch;
}
function ChangePage(PageNo) {
   DeleteParam("pageno");
   DeleteParam("operation");
   var new_search = "?" + search + "pageno="+PageNo+"&operation=changepage";
   SendRequest(new_search);
}
function ChangeSortBy(SortBy) {
   DeleteParam("operation");
   DeleteParam("SortBy");
   var new_search = "?" + search + "SortBy=" + SortBy+"&Operation=ChangeSortBy";
   SendRequest(new_search);
}
function SendRequest(pSearch)
{
   var new_location  = new String();
   new_location = window.location.href.replace(window.location.search,"");
   new_location += pSearch;
   window.location = new_location;
}
function ChangePageSize(PageSize)
{
   DeleteParam("operation");
   DeleteParam("pagesize");
   var new_search = "?" + search + "PageSize=" + PageSize+"&Operation=ChangePageSize";
   SendRequest(new_search);
}