var aAJAXID=new Array();
var aAJAXGROUP=new Array();
var aAJAXINITIALURL=new Array();
var aAJAXINITIALPARAMS=new Array();
var aAJAXPARAMS=new Array();
var aAJAXElementsCount=0;

function addPrototypeElement(cAJAXID,cAJAXGROUP,cINITIALURL,cINITIALPARAMS,bLoad) { 
	
	aAJAXID[aAJAXElementsCount]=cAJAXID;
	aAJAXGROUP[aAJAXElementsCount]=cAJAXGROUP;
	aAJAXINITIALURL[aAJAXElementsCount]=cINITIALURL;
	aAJAXINITIALPARAMS[aAJAXElementsCount]=cINITIALPARAMS;
	aAJAXPARAMS[aAJAXElementsCount]=cINITIALPARAMS;
	aAJAXElementsCount=aAJAXElementsCount+1;
	
	if (bLoad==null) {
		bLoad=true;
	}
		
	if (bLoad) {
		reloadPrototypeElement(cAJAXID);
	}
}


function getArrayPosViaId(cAJAXID) {

	var i=0;
	while (i<aAJAXElementsCount && cAJAXID!=aAJAXID[i]) {
		i=i+1; 
	}
	
	if (cAJAXID==aAJAXID[i]) {
		return i;
	} else {
		return -1;
	}
}

function initializePrototypeElement(cAJAXID) {

	var i=getArrayPosViaId(cAJAXID);	
	if (i!=-1) {
		aAJAXPARAMS[i]=aAJAXINITIALPARAMS[i];
	}
}

function reloadPrototypeElementGroups(cAJAXGROUP, cUrlParams) {

	var i=0;
	var q=0;
	
	var cOut='';
	
	aAJAXGROUPRELOAD=cAJAXGROUP.split(',');
	
	while (q<aAJAXGROUPRELOAD.length)	 {
	
		aAJAXCOMMANDS=aAJAXGROUPRELOAD[q].split('.');
		
		if (aAJAXCOMMANDS.length>0) {
			aAJAXGROUPRELOAD[q]=aAJAXCOMMANDS[0];
		}	
		
		i=0;	
		while (i<aAJAXElementsCount) {
			if ( aAJAXGROUP[i]==aAJAXGROUPRELOAD[q] ) {
				if (aAJAXCOMMANDS.length>0) {
					executeAJAXCommands(aAJAXID[i],aAJAXCOMMANDS,1);
				}
				reloadPrototypeElement( aAJAXID[i], cUrlParams );
			}
			i=i+1;
		}
		q=q+1;
	}
}

function reloadPrototypeElement(cAJAXID,cUrlParams,cFormIds) {

	var i=getArrayPosViaId(cAJAXID);
	
	if (i!=-1) {
	
		var cAJAXGROUP=aAJAXGROUP[i];
		var cINITIALURL=aAJAXINITIALURL[i];
		var cSTATEPARAMS=aAJAXPARAMS[i];
	
		if (cUrlParams!=null) {
			var aURLParams=cUrlParams.split("&");
			var q=0;
			while (q<aURLParams.length) {
				var aParam=aURLParams[q].split("=");
				if (aParam[0]!="catid" && aParam[0]!="subid") {
					cSTATEPARAMS=setUrlParam(cSTATEPARAMS,aParam[0],aParam[1]);
				}
				q=q+1;
			}
		}
		
		var cElemCatId=getUrlParam(cUrlParams,"catid");
		if (cElemCatId!="") {
			cSTATEPARAMS=setUrlParam(cSTATEPARAMS,"catidlocal",cElemCatId);
		}
		var cElemSubId=getUrlParam(cUrlParams,"subid");
		if (cElemSubId!="") {
			cSTATEPARAMS=setUrlParam(cSTATEPARAMS,"subidlocal",cElemSubId);
		}

		aAJAXPARAMS[i]=cSTATEPARAMS;
		
		if (cFormIds!=null) {
			var cFormParams=serializeForm(cFormIds);
			var aURLParams=cFormParams.split("&");
			var q=0;
			while (q<aURLParams.length) {
				var aParam=aURLParams[q].split("=");
				cSTATEPARAMS=setUrlParam(cSTATEPARAMS,aParam[0],aParam[1]);
				q=q+1;
			}
		}

		var url=cINITIALURL + "?" + cSTATEPARAMS;
		var cDivId='prototype_' + cAJAXID;


		// append a time in request
		var d = new Date();
		var t_hour = d.getHours();     // Returns hours
		var t_min = d.getMinutes();    // Returns minutes
		var rndtime=t_hour *10 +Math.floor(t_min/10);
		// url=setUrlParam(url,"rnd",rndtime);
	
		url=setUrlParam(url,"ajaxid",cAJAXID);
		url=setUrlParam(url,"ajaxgroup",cAJAXGROUP);
  
		xmlHttp=GetXmlHttpObject(function() {
			if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
				document.getElementById(cDivId).innerHTML=xmlHttp.responseText;
				
				var divId = document.getElementById(cDivId);
				var x = divId.getElementsByTagName("script");
				var h = document.getElementsByTagName("head")[0];
				for(var i=0;i<x.length;i++)
				{
					var s = document.createElement("script");
					s.type="text/javascript";
					h.appendChild(s);
					s.text=x[i].text;
				}

			}	
		});
		xmlHttp.open("GET", url , false);
		xmlHttp.send(null);	
	}
}

function executeAJAXCommands( cAJAXID, aAJAXCOMMANDS,nArrayStartPos) {

	var q=0;
	if (nArrayStartPos!=null){
		q=nArrayStartPos;	
	}
	
	while (q<aAJAXCOMMANDS.length) {
		switch (aAJAXCOMMANDS[q]) {		
			case "INITIAL" :
				initializePrototypeElement(cAJAXID);
				break;
		}
		q=q+1;
	}
}

function setUrlParam(cURL,cParam,cValue) {

	if (cURL!=null) {
		var cURLOut="";
		var cParamName=cParam + "=";
		var nParamPos=cURL.indexOf(cParamName);
		var cParamString=cParam + "=" + cValue;
	
		if (nParamPos==-1) {
			if (cURL.indexOf("?")!=0) {
				cURLOut=cURL + "&" + cParamString;
			} else {
				cURLOut=cURL + "?" + cParamString;
			}
		} else {
			nParamPosTo=cURL.indexOf("&",nParamPos);
			if (nParamPosTo==-1) {
				cURLOut=cURL.substring(0,nParamPos) + cParamString;
			} else {
				cURLOut=cURL.substring(0,nParamPos) + cParamString + cURL.substring(nParamPosTo);
			}
		}
		return cURLOut;
	} else {
		return "";
	}
}

function getUrlParam(cURL,cParam) {

	if (cURL!=null) {
		var cValue="";
		var cParamName=cParam + "=";
		var nParamPos=cURL.indexOf(cParamName);
	
		if (nParamPos!=-1) {
			nParamPos=nParamPos + cParam.length + 1;
			nParamPosTo=cURL.indexOf("&",nParamPos);
			if (nParamPosTo==-1) {
				cValue=cURL.substring(nParamPos);
			} else {
				cValue=cURL.substring(nParamPos,nParamPosTo);
			}
		}
		return cValue;
	} else {
		return "";
	}
}

function GetXmlHttpObject(handler) { 
	var objXmlHttp=null;

	if (navigator.userAgent.indexOf("MSIE")>=0)	{ 
		var strName="Msxml2.XMLHTTP";
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
		{
			strName="Microsoft.XMLHTTP";
		} try { 
			objXmlHttp=new ActiveXObject(strName);
			objXmlHttp.onreadystatechange=handler;
			return objXmlHttp;
		} catch(e) { 
			alert("Error. Scripting for ActiveX might be disabled");
			return;
		} 
	} 

	if (navigator.userAgent.indexOf("Mozilla")>=0) {
		objXmlHttp=new XMLHttpRequest();
		objXmlHttp.onload=handler;
		objXmlHttp.onerror=handler;
		return objXmlHttp;
	}
} 

function serializeForm(formId) {

	var oForm=document.getElementById(formId);
	
	var q=0;
	var querystr="";
	var oFormInputNamePrv="";
	
	while (q<oForm.length) {

		var oFormInputName=escape(oForm[q].name) ;
		var oFormInputValue=escape(oForm[q].value) ;
		var oFormInputType=oForm[q].type;
		
		if (oFormInputNamePrv!=oFormInputName || oFormInputType=='checkbox') {
		
			switch (oFormInputType) {
		
				case "button" :
					oFormInputValue="";
					break;

				case "checkbox" :	
					break;
		
				case "file" :			
					oFormInputValue="";
					break;

				case "hidden" :			
					break;

				case "image" :			
					break;

				case "password" :	
					break;
					
				case "radio" :			
					oFormInputValue=checkFormChilds(formId,q,"checked")
					break;
					
				case "reset" :			
					break;
					
				case "select-one" :
					try {
						oFormInputValue=oForm[q].options[oForm[q].selectedIndex].value;
					} catch(err) {
						oFormInputValue="";
					}					
					break;
					
				case "select-multiple" :			
					break;
					
				case "submit" :			
					break;
					
				case "text" :			
					break;

				case "textarea" :			
					break;
			}
			if (oFormInputValue!="") {
				var oFormInputPair=oFormInputName + "=" + oFormInputValue;
				if (querystr!="") {
					querystr=querystr + "&";
				}
				querystr=querystr + oFormInputPair;
			}
			var oFormInputNamePrv=oFormInputName;
		}
		
		q=q+1;
	}
	
	return querystr;
	
}

function checkFormChilds(formId,nFormElem,oElementSelected) {

	var oForm=document.getElementById(formId);
	var cInitialFormInputName=oForm[nFormElem].name;
	var cOut="";
	
	while (cInitialFormInputName==oForm[nFormElem].name) {
	
		if (oForm[nFormElem].checked) {
			cOut=oForm[nFormElem].value;
		}
		nFormElem=nFormElem+1;
	}
	
	return cOut;
	
}