//////////////////////////////////////////////////////////////////////////////////////////////
// WARNING ajaxParameter should be include before including this script
//////////////////////////////////////////////////////////////////////////////////////////////

var HTTP_GET = "GET";
var HTTP_POST = "POST";

/**
 * Check if the session has expired dropoffg parameter in result page 
 */
function isSessionExpired(result) {
	return (result.indexOf("<!--SESSIONEXPIRED-->") != -1);
}

/**
  * Create XmlObject
  */
function getXmlObject(obj)
{
  var myXmlHttp = false;

  /* Compilation conditionnelle d'IE */
  /*@cc_on
  @if(@_jscript_version >= 5)
     try
     {
        myXmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
     }
     catch(error)
     {
        try
        {
           myXmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
        }
        catch(Errot)
        {
           myXmlHttp = false;
        }
     }
  @else
     myXmlHttp = false;
  @end @*/

  if (!myXmlHttp && typeof XMLHttpRequest != 'undefined')
  {
     try
     {
        myXmlHttp = new XMLHttpRequest();
     }
     catch(error)
     {
        myXmlHttp = false;
     }
  }

  if (myXmlHttp)
  {
     myXmlHttp.onreadystatechange=function()
     {
        if (myXmlHttp.readyState == 4) /* 4 : ?tat "complete" */
        {
           try {
	           if (myXmlHttp.status == 200) { /* 200 : code HTTP pour OK */
	          	//Check for session status , if session expired redirect
	          	if (isSessionExpired(myXmlHttp.responseText))
					window.self.location.href = REDIRECT_PAGE;

				/*if (isSessionExpired(myXmlHttp.responseText))
					document.write(myXmlHttp.responseText);*/
	          	try {		
		            obj.receive(myXmlHttp.responseText);
		        } catch(aReceiveError) {}
	          }
			  else {
		          window.self.location.href = REDIRECT_PAGE;
				 //alert("A server error occurs, please make sure that Cookie management is enabled");
	          }
			}
			catch(error) {
				//obj.receive(""); // TODO séparer les appels ajax de traitement de réponses
				//obj.setErrorCode(error);
			}
        }
     }
  }
  return myXmlHttp;
}

/**
  * Send date
  * @param obj	  obj which implements receive() method
  * @param string [HTTP_GET|HTTP_POST]
  * @param string url of datas
  * @param string data to send with the following structure : var1=value1&amp;var2=value2...
  */
function sendData(obj, method, url, data)
{
	var myXmlHttp = getXmlObject(obj);
	if (!myXmlHttp)
		return false;

	if(method == HTTP_GET)
	{
		var myDate = new Date();
		data += "&dummydata=" + myDate.getTime();		

		if(data == 'null')
			myXmlHttp.open(HTTP_GET, url, true);
		else
			myXmlHttp.open(HTTP_GET, url+"?"+data, true);
		myXmlHttp.send(null);
		
	}
	else if(method == HTTP_POST)
	{
		myXmlHttp.open(HTTP_POST, url, true);
		myXmlHttp.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		myXmlHttp.send(data);
	}
	return true;
}

/*-------------------------------
	Static method
--------------------------------*/

function gtObj(id){
	return document.getElementById(id);
}

function getSelectValue(obj)
{
	var retVal = "";
	if(gtObj(obj).selectedIndex > -1 && gtObj(obj).options[gtObj(obj).selectedIndex].value!="")
		retVal = gtObj(obj).options[gtObj(obj).selectedIndex].value;
	else
		retVal = gtObj(obj).options[0].value;
	
	return retVal;
}

function getSelectHtml(obj)
{
	return gtObj(obj).options[gtObj(obj).selectedIndex].text;
}

/* Text functions */
var charsToDelete = new Array();
charsToDelete[0] = String.fromCharCode(9); // tabulation
charsToDelete[1] = String.fromCharCode(10); // lineFeed
charsToDelete[2] = String.fromCharCode(13); // carriageReturn

function trim(string){

	var retVal = "";
	
	for(var count=0;count<string.length;count++)
	{
		var isBadChar = false;
		for(var ccount = 0;ccount<charsToDelete.length;ccount++)
		{
			isBadChar = (string.charAt(count)==charsToDelete[ccount]);
			if(isBadChar)
				break;
		}
		if(!isBadChar)
			retVal += string[count];
	}
		
	return retVal;
}

function supportedNavigator() {
	var retVal = true;

	if(navigator.appVersion.indexOf("MSIE 5.0")!=-1)
		retVal = false;

	if(navigator.appVersion.indexOf("Chrome")!=-1)
		retVal = true;
	else if(navigator.appVersion.indexOf("Safari")!=-1)
		retVal = false;


	return retVal;
}

/*************************
Sample of base class :
**************************/
/*
Entity = function(){
		
}

Entity.prototype.receive = function(result){
	alert(result);
}

*/