/****************************************
SendReceive - A library to automate remote JSON formatted requests
Copyright (C) 2006  Jeremy Nicoll

Compressed version - the uncompressed file (SendRecieve.js) can be
retreived from www.SeeMySites.net

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

Please see lgpl.txt for a copy of the license - this notice must remain intact
and the file lgpl.txt must accompany this code.

Please go to www.SeeMySites.net/forum for questions and support.
********************************************/
function SendReceive(){this.sendRequest=SGPR.sendRequest;this.getRequest=SGPR.getRequest;}var SGPR={sendRequest:function(url,request,receiver,quiet){if(receiver){this.receiver=receiver;}if(typeof(this.receiver)!='function'&&this.async!==false){alert('Function not supplied for callback.');return false;}if(quiet===null||quiet===undefined){this.quiet=false;}var jRequest=JSON.stringify(request);this.remote=new getHTTPRequest();if(this.async==false){dont_wait=false;}else{dont_wait=true;}var ref=this;if(dont_wait){this.remote.onreadystatechange=function(){ref.getRequest(ref.remote,ref);};}this.remote.open('POST',url,dont_wait);this.remote.setRequestHeader("Content-type","text/plain");this.remote.setRequestHeader("Content-length",jRequest.length);this.remote.setRequestHeader("Connection","close");this.remote.send(jRequest);if(!dont_wait){this.response=eval('('+this.remote.responseText+')');}},getRequest:function(remote,obj){if(remote.readyState==4){if(remote.status==200){var getBack=eval('('+remote.responseText+')');obj.receiver(getBack);}else{if(!obj.quiet){alert('There was a problem with the request. Error code: '+this.remote.status);}else{obj.receiver({status:'remote',error_msg:remote.status});}}}}};function RepeatGetAction(page,request,interval,successFunc,failFunc,stopOnFail){page=page||'';request=request||{};interval=interval||3000;succssFunc=successFunc||'';failFunc=failFunc||'';if(stopOnFail===null||stopOnFail===undefined){stopOnFail=true;}this.init(page,request,interval,successFunc,failFunc,stopOnFail);}RepeatGetAction.prototype={init:function(page,request,interval,successFunc,failFunc,stopOnFail){this.page=page;this.request=request;this.interval=interval;this.successFunc=successFunc;this.failFunc=failFunc;this.stopOnFail=stopOnFail;if(this.checkVals()){this.start();}},sendRequest:SGPR.sendRequest,getRequest:SGPR.getRequest,checkVals:function(){if(this.page!==''&&parseInt(this.interval)>0&&typeof(this.interval)=='number'&&typeof(this.failFunc)=='function'&&typeof(this.successFunc)=='function'&&(typeof(this.request)=='object'||typeof(this.request)=='array')){return true;}else{return false;}},start:function(){if(!this.checkVals()){return false;}var ref=this;this.timerVar=setInterval(function(){ref.start_ref();},this.interval);},start_ref:function(){this.sendRequest(this.page,this.request,this.receive,true);},receive:function(getBack){if(!getBack){this.stop();alert('No response sent back to receive function.');}else if(getBack.status=='error'){if(this.stopOnFail){this.stop();}this.failFunc(getBack);}else if(getBack.status=='remote'){this.stop();alert('There was a problem with the request. Error code: '+getBack.error_msg);}else{this.successFunc(getBack);}},stop:function(){clearInterval(this.timerVar);}};function getHTTPRequest(){http_request=false;if(window.XMLHttpRequest){http_request=new XMLHttpRequest();}else if(window.ActiveXObject){try{http_request=new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{http_request=new ActiveXObject("Microsoft.XMLHTTP");}catch(e){}}}return http_request;}function $(text){return document.getElementById(text);}