var oCache={iCacheLower:-1};function fnSetKey(aoData,sKey,mValue)
{for(var i=0,iLen=aoData.length;i<iLen;i++)
{if(aoData[i].name==sKey)
{aoData[i].value=mValue;}}}
function fnGetKey(aoData,sKey)
{for(var i=0,iLen=aoData.length;i<iLen;i++)
{if(aoData[i].name==sKey)
{return aoData[i].value;}}
return null;}
function fnDataTablesPipeline(sSource,aoData,fnCallback){var iPipe=3;var bNeedServer=false;var sEcho=fnGetKey(aoData,"sEcho");var iRequestStart=fnGetKey(aoData,"iDisplayStart");var iRequestLength=fnGetKey(aoData,"iDisplayLength");var iRequestEnd=iRequestStart+iRequestLength;oCache.iDisplayStart=iRequestStart;if(oCache.iCacheLower<0||iRequestStart<oCache.iCacheLower||iRequestEnd>oCache.iCacheUpper)
{bNeedServer=true;}
if(oCache.lastRequest&&!bNeedServer)
{for(var i=0,iLen=aoData.length;i<iLen;i++)
{if(aoData[i].name!="iDisplayStart"&&aoData[i].name!="iDisplayLength"&&aoData[i].name!="sEcho")
{if(aoData[i].value!=oCache.lastRequest[i].value)
{bNeedServer=true;break;}}}}
oCache.lastRequest=aoData.slice();if(bNeedServer)
{if(iRequestStart<oCache.iCacheLower)
{iRequestStart=iRequestStart-(iRequestLength*(iPipe-1));if(iRequestStart<0)
{iRequestStart=0;}}
oCache.iCacheLower=iRequestStart;oCache.iCacheUpper=iRequestStart+(iRequestLength*iPipe);oCache.iDisplayLength=fnGetKey(aoData,"iDisplayLength");fnSetKey(aoData,"iDisplayStart",iRequestStart);fnSetKey(aoData,"iDisplayLength",iRequestLength*iPipe);$.getJSON(sSource,aoData,function(json){oCache.lastJson=jQuery.extend(true,{},json);if(oCache.iCacheLower!=oCache.iDisplayStart)
{json.aaData.splice(0,oCache.iDisplayStart-oCache.iCacheLower);}
json.aaData.splice(oCache.iDisplayLength,json.aaData.length);fnCallback(json)});}
else
{json=jQuery.extend(true,{},oCache.lastJson);json.sEcho=sEcho;json.aaData.splice(0,iRequestStart-oCache.iCacheLower);json.aaData.splice(iRequestLength,json.aaData.length);fnCallback(json);return;}}