/* Simple AJAX Code-Kit (SACK) v1.6.1 */
/* ©2005 Gregory Wild-Smith */
/* www.twilightuniverse.com */
/* Software licenced under a modified X11 licence,
   see documentation or authors website for more details */
function sack(file){
this.xmlhttp=null;
this.resetData=function(){
this.method="POST";
this.queryStringSeparator="?";
this.argumentSeparator="&";
this.URLString="";
this.encodeURIString=true;
this.execute=false;
this.element=null;
this.elementObj=null;
this.requestFile=file;
this.vars=new Object();
this.responseStatus=new Array(2);
};
this.resetFunctions=function(){
this.onLoading=function(){ };
this.onLoaded=function(){ };
this.onInteractive=function(){ };
this.onCompletion=function(){ };
this.onError=function(){ };
this.onFail=function(){ };
};
this.reset=function(){
this.resetFunctions();
this.resetData();
};
this.createAJAX=function(){
try{
this.xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");
} catch(e1){
try{
this.xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
} catch(e2){this.xmlhttp=null;}
}
if(!this.xmlhttp){
if(typeof XMLHttpRequest!="undefined"){
this.xmlhttp = new XMLHttpRequest();
}else{this.failed=true;}
}};
this.setVar=function(name,value){
this.vars[name]=Array(value,false);
};
this.encVar=function(name,value,returnvars){
if(true==returnvars){
return Array(encodeURIComponent(name),encodeURIComponent(value));
}else{
this.vars[encodeURIComponent(name)]=Array(encodeURIComponent(value),true);
}}
this.processURLString = function(string,encode){
encoded=encodeURIComponent(this.argumentSeparator);
regexp=new RegExp(this.argumentSeparator + "|" + encoded);
varArray=string.split(regexp);
for(i=0;i<varArray.length;i++){
urlVars=varArray[i].split("=");
if(true==encode){this.encVar(urlVars[0],urlVars[1]);} else {this.setVar(urlVars[0],urlVars[1]);}
}}
this.createURLString=function(urlstring){
if(this.encodeURIString && this.URLString.length) {
this.processURLString(this.URLString,true);
}
if(urlstring){
if(this.URLString.length){this.URLString+=this.argumentSeparator+urlstring;} else {this.URLString=urlstring;}
}
this.setVar("rndval", new Date().getTime());
urlstringtemp=new Array();
for(key in this.vars){
if(false==this.vars[key][1] && true==this.encodeURIString){
encoded=this.encVar(key,this.vars[key][0],true);
delete this.vars[key];
this.vars[encoded[0]]=Array(encoded[1],true);
key=encoded[0];}
urlstringtemp[urlstringtemp.length]=key+"="+this.vars[key][0];}
if(urlstring){
this.URLString+=this.argumentSeparator+urlstringtemp.join(this.argumentSeparator);}else{this.URLString+=urlstringtemp.join(this.argumentSeparator);}
}
this.runResponse=function(){eval(this.response);}
this.runAJAX=function(urlstring){
if(this.failed){this.onFail();}else{
this.createURLString(urlstring);
if(this.element){
this.elementObj=document.getElementById(this.element);
}
if(this.xmlhttp){
var self=this;
if(this.method=="GET"){
totalurlstring=this.requestFile+this.queryStringSeparator+this.URLString;
this.xmlhttp.open(this.method,totalurlstring,true);
}else{
this.xmlhttp.open(this.method,this.requestFile,true);
try{
this.xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded")
}catch(e){ }}
this.xmlhttp.onreadystatechange=function(){
switch(self.xmlhttp.readyState){
case 1:
self.onLoading();break;
case 2:
self.onLoaded();break;
case 3:
self.onInteractive();break;
case 4:
self.response=self.xmlhttp.responseText;
self.responseXML=self.xmlhttp.responseXML;
self.responseStatus[0]=self.xmlhttp.status;
self.responseStatus[1]=self.xmlhttp.statusText;
if(self.execute){self.runResponse();}
if(self.elementObj){
elemNodeName=self.elementObj.nodeName;
elemNodeName.toLowerCase();
if(elemNodeName=="input" || elemNodeName=="select"
|| elemNodeName=="option"|| elemNodeName=="textarea"){
self.elementObj.value=self.response;
}else{self.elementObj.innerHTML=self.response;}
}
if(self.responseStatus[0]=="200"){
self.onCompletion();
}else{self.onError();}
self.URLString = "";
break;
}};
this.xmlhttp.send(this.URLString);
}}};
this.reset();
this.createAJAX();
}